# Elastic Collisions - Page 2

Questions

- The collision between a tennis ball and a tennis racket tends to be more elastic in nature than a collision between a halfback and linebacker in football. Is that true or false?
- A ball with a mass of # 5 kg# is rolling at #9 m/s# and elastically collides with a resting ball with a mass of #2 kg#. What are the post-collision velocities of the balls?
- A ball with a mass of #2 kg# is rolling at #12 m/s# and elastically collides with a resting ball with a mass of #1 kg#. What are the post-collision velocities of the balls?
- A ball with a mass of # 5 kg# is rolling at #7 m/s# and elastically collides with a resting ball with a mass of #4 kg#. What are the post-collision velocities of the balls?
- A ball with a mass of # 2 kg# is rolling at #12 m/s# and elastically collides with a resting ball with a mass of # 9 kg#. What are the post-collision velocities of the balls?
- A ball with a mass of # 5 kg# is rolling at #12 m/s# and elastically collides with a resting ball with a mass of #4 kg#. What are the post-collision velocities of the balls?
- A ball with a mass of #2 kg# is rolling at #1 m/s# and elastically collides with a resting ball with a mass of #3 kg#. What are the post-collision velocities of the balls?
- A ball with a mass of # 23 kg# is rolling at #25 m/s# and elastically collides with a resting ball with a mass of # 2 kg#. What are the post-collision velocities of the balls?
- A ball with a mass of # 3 kg# is rolling at #1 m/s# and elastically collides with a resting ball with a mass of #4 kg#. What are the post-collision velocities of the balls?
- A ball with a mass of # 6 kg# is rolling at #2 m/s# and elastically collides with a resting ball with a mass of # 8 kg#. What are the post-collision velocities of the balls?
- A ball with a mass of # 6 kg# is rolling at #25 m/s# and elastically collides with a resting ball with a mass of # 2 kg#. What are the post-collision velocities of the balls?
- A dish of mass 10g is kept horizontally in air by firing bullets of mass 5g each at the rate of 100/s. I the bullets rebound with the same speed,what is the velocity with which bullets are being fired?
- A ball with a mass of #2 kg# is rolling at #3 m/s# and elastically collides with a resting ball with a mass of #1 kg#. What are the post-collision velocities of the balls?
- How does the center of mass change position?
- Why is the center of mass important in physics?
- A block of metal wheighing 2 kg is resting on a frictionless surface,if struck by a jet releasing water at the rate of 1kg/s and at a speed of 5m/s.what is the initial acceleration of the block ?
- A ball with a mass of # 5 kg# is rolling at #5 m/s# and elastically collides with a resting ball with a mass of #4 kg#. What are the post-collision velocities of the balls?
- How is the elastic collision equation derived?
- A ball with a mass of # 6 kg# is rolling at #7 m/s# and elastically collides with a resting ball with a mass of #3 kg#. What are the post-collision velocities of the balls?
- On a touchdown attempt, a 95.0 kg running back runs toward the end zone at 3.75 m/s. A 111 kg linebacker moving at 4.10 m/s meets the runner in a head-on collision. If the two players stick together, what is their velocity immediately after the collision?