What is the Path of a Cricket Ball During a Bowler's Run Up?

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In summary, the conversation discusses the task of modeling the run up a bowler takes before throwing a cricket ball and the path of the ball. The person seeking help has already done some work and equations, but is unsure about the initial velocity of the ball when it bounces on the ground. The conversation suggests modeling the impact with the ground as an elastic or inelastic collision, or assuming the speed doesn't change but the direction does.
  • #1
eejpama
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Homework Statement


model the run up a bowler takes before he throws the cricket ball


Homework Equations


model the path of the cricket ball


The Attempt at a Solution


we can make any assumption. if anyone good in physics please helo me model it.
 
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  • #2
If this is homework you should have a go yourself first.

PS: He doesn't just "throw" the cricket ball (that would be an illegal delivery) he bowls it with a straight arm. I'm not just being picky. This might help you answer the question.
 
  • #3
i have done some work and equations. but when balls hits the ground i don't understand how to work it out because bounce on ground before it rise again to touch the bat. at that moment i want to know the initial velcity whether it is zero or not? just confused
 
  • #4
No not zero velocity. If it bounces the [STRIKE]velocity[/STRIKE] speed just after the bounce won't be very different to that just before the bounce. Just the direction changes.

You could model the impact with the ground as an elastic collision or an inelastic collision or perhaps just assume the speed doesn't change. Although obviously the direction does (up rather than down).

http://en.wikipedia.org/wiki/Elastic_collision

"An elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies after the encounter is equal to their total kinetic energy before the encounter" (eg none lost to heat, sound etc)

http://en.wikipedia.org/wiki/Inelastic_collision
"Inelastic collisions may not conserve kinetic energy, but they do obey conservation of momentum"
 
  • #5
thank u that is really helpfull.
 

Related to What is the Path of a Cricket Ball During a Bowler's Run Up?

What is the path of a cricket ball?

The path of a cricket ball refers to the trajectory or flight path that the ball takes when it is bowled or hit by a player. It is influenced by factors such as the speed of the ball, the spin applied to it, and the conditions of the pitch.

How is the path of a cricket ball affected by the pitch?

The pitch can have a significant impact on the path of a cricket ball. A dry and hard pitch can cause the ball to bounce higher and faster, while a damp and soft pitch can cause the ball to move slower and lower. The pitch also determines how much spin a bowler can put on the ball, which can greatly affect its path.

What role does the speed of the ball play in its path?

The speed of the ball is a crucial factor in determining its path. A faster ball will travel through the air at a flatter trajectory, while a slower ball will have a more curved path. This affects the angle at which the ball bounces and how it behaves when it hits the ground or the bat.

How does the spin of the ball affect its path?

Spin is applied to the ball by the bowler, either by rotating the ball with their fingers or by using their wrist. This rotation creates an imbalance in the forces acting on the ball, causing it to deviate from a straight path. The type and amount of spin can greatly influence the path of the ball, making it challenging for the batsman to hit.

Can outside factors influence the path of a cricket ball?

Yes, there are several external factors that can affect the path of a cricket ball. Wind speed and direction, humidity, and the condition of the ball can all play a role in altering its trajectory. Additionally, the skill and technique of the bowler and the batsman can also impact the path of the ball.

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