What is Baseball: Definition and 264 Discussions

Baseball is a bat-and-ball game played between two opposing teams who take turns batting and fielding. The game proceeds when a player on the fielding team, called the pitcher, throws a ball which a player on the batting team tries to hit with a bat. The objective of the offensive team (batting team) is to hit the ball into the field of play, allowing its players to run the bases, having them advance counter-clockwise around four bases to score what are called "runs". The objective of the defensive team (fielding team) is to prevent batters from becoming runners, and to prevent runners' advance around the bases. A run is scored when a runner legally advances around the bases in order and touches home plate (the place where the player started as a batter). The team that scores the most runs by the end of the game is the winner.
The first objective of the batting team is to have a player reach first base safely. A player on the batting team who reaches first base without being called "out" can attempt to advance to subsequent bases as a runner, either immediately or during teammates' turns batting. The fielding team tries to prevent runs by getting batters or runners "out", which forces them out of the field of play. Both the pitcher and fielders have methods of getting the batting team's players out. The opposing teams switch back and forth between batting and fielding; the batting team's turn to bat is over once the fielding team records three outs. One turn batting for each team constitutes an inning. A game is usually composed of nine innings, and the team with the greater number of runs at the end of the game wins. If scores are tied at the end of nine innings, extra innings are usually played. Baseball has no game clock, although most games end in the ninth inning.
Baseball evolved from older bat-and-ball games already being played in England by the mid-18th century. This game was brought by immigrants to North America, where the modern version developed. By the late 19th century, baseball was widely recognized as the national sport of the United States. Baseball is popular in North America and parts of Central and South America, the Caribbean, and East Asia, particularly in Japan, South Korea and Taiwan.
In the United States and Canada, professional Major League Baseball (MLB) teams are divided into the National League (NL) and American League (AL), each with three divisions: East, West, and Central. The MLB champion is determined by playoffs that culminate in the World Series. The top level of play is similarly split in Japan between the Central and Pacific Leagues and in Cuba between the West League and East League. The World Baseball Classic, organized by the World Baseball Softball Confederation, is the major international competition of the sport and attracts the top national teams from around the world.

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  1. A

    What is the final velocity of the baseball after being hit by the bat?

    Homework Statement A pitcher throws a 0.124-kg baseball, and it approaches the bat at a speed of 54.2 m/s. The bat does Wnc = 76.5 J of work on the ball in hitting it. Ignoring the air resistance, determine the speed of the ball after the ball leaves the bat and is 21 m above the point of...
  2. M

    Finding Range of Possible Pitching Speeds

    Homework Statement A baseball player friend of yours wants to determine his pitching speed. You have him stand on a ledge and throw the ball horizontally from an elevation 7.00 m above the ground. The ball lands 20.0 m away. A. What is his pitching speed? B. As you think about it, you’re not...
  3. R

    Baseball - (2D?) Kinematics - Projectile Motion

    Homework Statement A batter hits a baseball at a speed of 45 m/sec at an angle of 50° above the horizontal. The right fielder, who is standing 300 m away from the batter, begins to run when he sees the bat hit the ball. If the fielder runs at a constant speed, what speed does he need to run...
  4. T

    How Much Does a Baseball Drop When Thrown Horizontally at 46.8 m/s Over 15.7 m?

    Homework Statement A major-league pitcher can throw a baseball in excess of 46.8 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 15.7 m away from the point of release? Homework Equations The Attempt at a...
  5. S

    Average force in baseball help?

    Homework Statement A 0.140-kg baseball traveling 33.0 m/s strikes the catcher's mitt, which, in bringing the ball to rest, recoils backward 13.0 cm. What was the average force applied by the ball on the glove? Homework Equations F=\DeltaM/\DeltaT The Attempt at a Solution I don't...
  6. P

    One Dimensional Baseball Kinematics

    Homework Statement 52. A baseball player catches a ball 3.1 s after throwing it vertically upward. With what speed did he thow it, and what height did it reach? Homework Equations def of a = t^-1 (V - Vo) The Attempt at a Solution t = (3.1 s)2^-1 = 1.55 s def of a = t^-1 (V -...
  7. P

    Is Acceleration Different During a Baseball's Flight?

    Homework Statement A batter hits a pop fly straight up. a) Is the acceleration of the ball on the way up different from its acceleration on the way down? (YES / NO) b) Is the acceleration of the ball at the top of its flight different from its acceleration just before it lands?Yes / No...
  8. J

    Solving Baseball Impulse and Force Problems

    Homework Statement a 0.144kg baseball is pitched horizontally at +38m/s. after it is hit by a bat, the baseball moves horizontally at -38m/s. a) what impulse did the bat deliver to the ball b) if the bat and the ball were in contact for 8.0*10^-4 seconds, what was the average force that...
  9. M

    Torque on Baseball going through pitching machine

    Homework Statement I am designing a shaft for a pitching machine that uses a spinning tire to accelerate a ball and must determine the torque acting on the shaft when a ball goes through the machine. A 1/4 horsepower motor is spinning an 8 inch tire at 1900RPM, constant angular velocity...
  10. N

    What are the Physics Behind Baseball Pitching Techniques and Illegal Pitches?

    I am doing a research paper on many of the different kinds of pitches in baseball like fastball, curveball, knuckleball. I wanted to do something on illegal pitches like a spit ball, scuffball, or somehting like that but can't find much infomation. Can anyone help? thanks
  11. A

    Expected length of longest winning streak in a 162-game baseball season

    Hi! The Red Sox just finished an 11-game winning streak, which made me wonder. Do most teams experience winning streaks this long over the course of a season? What is the expected value of the length of the longest winning streak for a .500 team over the course of a season? In...
  12. S

    Bullet Lodges In Baseball (vertical)

    Homework Statement A 0.028 kg bullet is fired vertically at 185 m/s into a 0.15 kg baseball that is initially at rest. The bullet lodges in the baseball and, after the collision, the baseball/ bullet rise to a height of 37 m. (a) What was the speed of the baseball/bullet right after the...
  13. C

    Calculating Horizontal and Vertical Speeds of a Baseball

    A baseball is hit with a horizontal speed of 16 m/s and a vertical speed of 19 m/s upward. What are these speeds 1 s later? horizontal speed 16 m/s vertical speed ? m/s I figured out that the horizontal speed would still be the same and it was. So i thought that the vertical speed...
  14. S

    Solve for Time in Air: Baseball Hit Problem | 30 m/s at 30 deg | Window at 12m

    Homework Statement After you hit a baseball, it flies into a window across the street. The baseball leaves your bat at a distance 1m above the ground, and the window is 12 m above the ground. The ball leaves your bat with a velocity of 30 m/s at 30 degrees. How long was the ball in the...
  15. D

    What is the Approximate Torque on a Baseball Bat Held Horizontally?

    Homework Statement A baseball player holds a bat at the end of the handle. If the bat is held horizontally, what is the approximate torque due to the force of gravity on the bat, with a pivot point at the batter's hands? Assume that the the bat is uniform. Use L for length of the bat, m for...
  16. P

    Kinetic energy and potential energy of a baseball

    Homework Statement can the kinetic energy of a baseball be negative. can the potential energy of a baseball be negative. Homework Equations no relevant equations. The Attempt at a Solution i believe the potential energy can be negative if it is falling and the kinetic energy can...
  17. K

    My teacher told me he calls this a baseball question why?

    My teacher told me he calls this a "baseball question"... why?! Homework Statement A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.0 m/s. The car is distance d away. The bear is 26 m behind the tourist and running at 6.0 m/s. The tourist...
  18. W

    Calculating Height of a Fence Hit by a Baseball

    Homework Statement A baseball is hit at ground level. The ball is observed to reach its maximum height above ground level 3.0 seconds after being hit. And 2.5 seconds after reaching this maximum height, the ball is observed to barely clear a fence that is 320 ft from where it was hit. How high...
  19. N

    Center of mass of baseball bat problem

    Homework Statement A baseball bat of length L has a peculiar linear density given by \lambda = \lambda0 * (1+X2/L2) Find the x coordinate of the center of mass in terms of L Homework Equations Mxcm= mr The Attempt at a Solution So I use integration The integrand I have is x*\lambda dx...
  20. E

    Linear momentum baseball pitch

    Homework Statement A 150-g baseball pitched at a speed of 40 m/s is hit straight back to the pitches at a speed of 60 m/s. If the bat is in contact with the baseball for 5 ms calculate the magnitude of the average force exerted by the bat on the baseball. Homework Equations Favg = delta...
  21. S

    Solving Questions on Throwing a Baseball to Hit a Target

    [b]1. Homework Statement You throw a baseball to hit a target on the ground 10m from the base of a building 25m in height. (a) With what velocity must you throw the baseball if it is to leave the hand horizontally? (b) with what velocity mut you throw the baseball if it is to leave the hand...
  22. B

    Conservation of momentum and baseball throw

    While standing still on the baseball field, you throw the ball to a teammate. Why do you not move backward as a result? Is the law of conservation of momentum violated?
  23. lisab

    Funny Baseball Names: Balfour & Walker

    I'm half (maybe only a quarter) watching the World Series... ...Tampa Bay has a pitcher named Balfour :smile: ! That's as bad as a pitcher named Walker.
  24. B

    Solving the Kinetic Energy of a Baseball

    Homework Statement An outfielder throws a 2.01 kg baseball at a speed of 108 m/s and an initial angle of 11.9◦. What is the kinetic energy of the ball at the highest point of its motion? Answer in units of J. Homework Equations change KE=W R=Vi^2/g (sin2O) V^2=Vi^2+2ax F=ma W=Fx...
  25. T

    Momentum - Baseball Homework: Average Force, Direction

    Homework Statement A 0.145 kg baseball pitched horizontally at 39.0 m/s strikes a bat and is popped straight up to a height of 37.0 m. (a)If the contact time between bat and ball is 1.0 ms, calculate the magnitude of the average force between the ball and bat during contact. (b)Find the...
  26. B

    Baseball and projectile motion problem

    Homework Statement A second baseman tosses the ball to the first baseman, who catches it at the same level from which it was thrown. The throw is made with an initial speed of 15.0 m/s at an angle of 33.0° above the horizontal. (Neglect air resistance.) How long is the ball in the air...
  27. L

    Debating Projected Wins in Baseball: The 2006 St. Louis Cardinals

    I had a debate tonight with someone about winning projections in baseball. I'll try to condense this as much as possible so it isn't a long read. So basically I was proposing that if I were MLB Commissioner I would do away with divisions, go back to an AL-NL league format, and have the top 4...
  28. W

    Coefficient of Friction of a baseball player

    Question: A baseball player slides into third base with an initial speed of 8.35 m/s. If the coefficient of kinetic friction between the player and the ground is 0.36, how far does the player slide before coming to rest? How would I start this problem?? I would use Ff=uFn but it doesn't even...
  29. L

    Rotational Energy of a baseball

    A 250 g baseball is pitched at 35 m/s, and it's spinning at 55rad/s . What fraction of its kinetic energy is rotational? Treat the baseball as a uniform solid sphere of radius 3.8 cm. Answer in K_rot_/K_tot What the?! I am pretty lost on this one... Do I use K_rot_=(1/2)I\omega^2
  30. L

    Do Steroids Really Affect Hitting Power In Baseball?

    So I've been trying to find sources that discuss the actual science behind this, but of course that's very hard to find. I've been skeptical about the effects steroids has on hitting power in baseball. Maybe it affects people in other sports, but with hitting power in baseball I am skeptical...
  31. B

    How far do the runner and catcher slide?

    Homework Statement It's the bottom of the ninth inning at a baseball game. Score is tied with a runner on 2nd when the batter gets a hit. The 85 kg runner rounds 3rd and is heading home with a speed of 8.0 m/s. Just before he reaches home plate he crashes into the catcher and the two players...
  32. D

    Baseball Player Hits Home Run: Calculating Velocity and Flight Time

    a baseball player hits a home run that just clears the top of the bleachers 21m high located 130m from home base. the ball is hit at an angle of 35* above the horizontal a) find initial velocity of the ball b)the total time of the flight of the ball...
  33. rocomath

    Related rates, baseball diamond

    Even problem, very please! A baseball diamond is a square with side 90 ft. A batter hits the ball and runs toward first base with a speed of 24 ft/s. a) At what rate is his distance from second base decreasing when he is halfway to the first base? b) At what rate is his distance from third...
  34. T

    Relativistic Doppler Effect and a Baseball

    [SOLVED] Relativistic Doppler Effect and a Baseball Homework Statement A baseball coach uses a radar device to measure the speed of an approaching pitched baseball. This device sends out electromagnetic waves with frequency f_0 and then measures the shift in frequency \Delta f of the...
  35. P

    Projectile motion of a baseball problem

    Homework Statement a baseball is thrown at an angle of 25 degrees relative to the ground at a speed of 23.0m/s. If the ball was caught 42 m from the thrower, how long was it in the air? how high did the ball travel before being caught? Homework Equations The Attempt at a Solution...
  36. C

    How Fast is the Baseball After Being Hit 24.6m Up?

    Homework Statement A pitcher throws a 0.128-kg baseball, and it approaches the bat at a speed of 56.1 m/s. The bat does Wnc = 81.3 J of work on the ball in hitting it. Ignoring the air resistance, determine the speed of the ball after the ball leaves the bat and is 24.6 m above the point of...
  37. R

    Angular acceleration in baseball

    I have coached and taught baseball collegiately and professionally for the past 15 years and have stumbled upon a question that is beyond my math education. How does linear movement of a rotating system effect the angular acceleration of that system if the system is moving left to right and...
  38. S

    Calculating the Distance Dropped by a Baseball Thrown at 116 km/h

    a) A pitcher throws a baseball horizontally at 116 km/h toward home plate, which is 18.4 m away. How far will the ball drop due to gravity by the time it reaches home plate? g=9.81m/s^2 v=116km/h i tried to solve this question, but i don't know where to get the high. 116km/h=32.22m/s...
  39. A

    Hitting a Baseball: Solving Physics Problem

    [SOLVED] Hitting a baseball Homework Statement A batter hits a pitched ball when the center of the ball is 1.37 m above the ground.The ball leaves the bat at an angle of 45° with the ground. With that launch, the ball should have a horizontal range (returning to the launch level) of 106 m...
  40. J

    Baseball projectile motion question

    [SOLVED] Baseball projectile motion question Homework Statement A ball player hits a home run, and the baseball just clears a wall 8.00 m high located 104.8 m from home plate. The ball is hit at an angle of 38.4 degrees to the horizontal, and air resistance is negligible. Assume the ball is...
  41. J

    Baseball Problem: Does a Ball Hit the Roof? Answer Here!

    Homework Statement This is part of a calculus test and I am clearly missing something because this should be an easy problem: A baseball pitcher is having fun with the fans. He can throw a ball vertically froma point 6 feet above the ground at 75 miles per hour (110 ft/sec). He is standing in...
  42. O

    Boundary layers seperating from a baseball based on the viscosity of the air

    finally in my search to understand why the boundary layer separates from the surface of a baseball I have come to understand that the reasons for the separation of the boundary layer from a baseball is incredibly similar to the separation of the boundary layer from a wing of an airplane after...
  43. U

    Projectile motion of a baseball

    hey, I'm having some difficulty with this problem. / / | / ) 45 | | | 3.0m | 1.3m...
  44. A

    Impulse and average force of baseball

    i don't understand wat I am doing wrong here is my problem Choose the positive direction to be from the pitcher to the plate (some answers may be negative). A pitcher throws a 0.13 kg baseball so that it crosses home plate horizontally with a speed of 31 m/s. It is hit straight back at the...
  45. A

    Gravitational potential energy of baseball

    Homework Statement A baseball is thrown from the roof of a 22.0-m-tall building with an inital velocty of magnitude 12.0 m/s and directed at an angle of 53.1 degrees above the horizontal. a) What is the speed o fthe ball just before it strikes the ground? Use energy conservation and ignore...
  46. B

    A baseball is thrown straight up with initial speed

    A baseball is thrown straight up with initial speed v(o). If air resistance cannot be ignored, when the ball returns to its initial height its speed is less than v(o). Explain why, using energy concepts. I am very confused as to why this is. A projectile has the same initial kinetic energy...
  47. M

    Why Do Both Solutions to the Baseball's Flight Equation Yield Positive Times?

    1. A baseball is thrown vertically into the air with a speed of 24.0m/s. How long does it take to return to the ground? I found out the height that it could reach was 29m, then I used the formula d=vit+at^2/2. ---> 29=24t+9.81t^2/2. But I got two answers. THey are both positive. Why? Is...
  48. O

    Webpage title: Air Resistance of Baseball: Quadratic vs Linear Drag Force

    When a baseball flies through the air, the ratio f_{quad} / f _{lin} of the quadratic to the linear drag force is given by \frac{f_{quad}}{f_{lin}} = \frac{cv^{2}}{bv} = \frac{\gamma D}{\beta} v = (1.6 x 10^{3} \frac{s}{m^{2}}) Dv. Given that a baseball has a diamater of 7 cm, find the...
  49. N

    Baseball Physics: Solving Velocity and Net Force with Drag Coefficient

    Homework Statement 1) A baseball is thrown straight up. The drag force is proportional to v^2. In terms of g, what is the y-component of the balls acc., when it's speed is half is terminal speed and it is moving up? When it is moving down? The Attempt at a Solution 1) When the ball...
  50. Janus

    Oregon State repeats as Baseball National Champs

    Another amazing finish for the Beavers! It was supposed to be a "rebuilding year".( They lost almost all of last year's starting players to graduation or the draft). They struggled in conference play during the season going 10-14. (And thus become the first team to win the national...
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