Determining change of momentum of a tennis ball

In summary, the conversation discusses a tennis ball being thrown perpendicular to a wall and colliding with it at a partially elastic collision with e= 0.5. The question arises about how to determine the change of momentum, to which it is suggested to use the given value of e to find the speed after the collision.
  • #1
marijo
1
0
A tennis ball is thrown perpendicularly to the wall. The ball collides with the wall at p momentum. If its collision is partially elastic where e= 0.5, then its change of momentum is



e= 0.5 which its a partly elastic collision



how do we determine the change of momentum? does it involve the basic equation of momentum; that F.(t2-t1) = P2 - P1

thanks before
 
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  • #2
welcome to pf!

hi marijo! welcome to pf! :smile:

(try using the X2 icon just above the Reply box :wink:)
marijo said:
how do we determine the change of momentum? does it involve the basic equation of momentum; that F.(t2-t1) = P2 - P1

no, because you have no idea what the times are! :rolleyes:

you need to use e= 0.5 to find the speed after the collision :wink:
 

FAQ: Determining change of momentum of a tennis ball

What is momentum?

Momentum is a measure of an object's motion, calculated by multiplying its mass by its velocity. It is a vector quantity, meaning it has both magnitude and direction.

How is momentum related to the change in velocity of a tennis ball?

Momentum is directly proportional to velocity, meaning that an increase in velocity will result in an increase in momentum. Therefore, a change in velocity of a tennis ball will also result in a change in momentum.

What factors affect the change in momentum of a tennis ball?

The change in momentum of a tennis ball is affected by its mass, velocity, and the force applied to it. A larger mass or a higher velocity will result in a greater change in momentum, while a smaller mass or a lower velocity will result in a smaller change in momentum. Additionally, the direction and magnitude of the force applied will also impact the change in momentum.

How is the change in momentum of a tennis ball calculated?

The change in momentum of a tennis ball can be calculated using the formula: ∆p = m∆v, where ∆p is the change in momentum, m is the mass of the tennis ball, and ∆v is the change in velocity. The units for momentum are kg*m/s.

Why is it important to determine the change in momentum of a tennis ball?

Determining the change in momentum of a tennis ball can help to understand and analyze the motion of the ball. It can also be useful in predicting and controlling the trajectory of the ball, as well as in assessing the impact of external forces on the ball. In sports such as tennis, understanding the change in momentum of the ball can be crucial for players to improve their performance.

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