SammyS said:What are your answers?
What have you tried? Where are you stuck?
I see that you have 28 posts on this site. You should know the drill by now.
"g = Fg/m, right?" Wow, that's hard to read. Looks like g should cancel. --- But I presume you mean that:page123 said:I edited out the ones I'm not stuck on, I'm not sure how I would interpret the ball rolling and stopping on the table (friction?) and about the heavy/light person parachute thing I'm getting two answers:
1) g = Fg/m, right? so they would be similar ratios but one has a higher mass and bigger Fg, but they would both reach at the same acceleration --> same time reach the ground
2) the lighter person reaches terminal velocity first but the heavier person keeps accelerating (not sure how) so the heavier person hits ground first
which is right?
SammyS said:"g = Fg/m, right?" Wow, that's hard to read. Looks like g should cancel. --- But I presume you mean that:
g = (Fg)/m .
Your answer #2 is the better of the two. Actually another factor is that terminal velocity is greater for the heavier person. Can you explain why that is true?
Newton's first law states that an object at rest will remain at rest and an object in motion will remain in motion at a constant velocity unless acted upon by an external force. Newton's second law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Newton's third law states that for every action, there is an equal and opposite reaction.
The laws of motion apply to everyday life in countless ways. For example, when you push a door to open it, you are applying force to the door (Newton's second law). When you ride a bike, you are experiencing inertia (Newton's first law). When you throw a ball, you can see the equal and opposite reaction as the ball bounces back off a wall (Newton's third law).
Yes, the laws of motion apply to all objects, regardless of their size or mass. These laws are fundamental principles that govern the movement of all objects in the universe.
No, the laws of motion cannot be broken. They have been tested and proven to be true in countless experiments and observations. However, there are certain situations where the laws may appear to be broken, but in reality, there are other forces at play that we may not be aware of.
The laws of motion were discovered by Sir Isaac Newton in the late 17th century. He published his findings in his famous book "Philosophiæ Naturalis Principia Mathematica" (Mathematical Principles of Natural Philosophy) in 1687.