A lead ball strikes a wall and falls down, a tennis ball having the same mass and velocity strikes the wall and bounces back. Check the correct statement.
Correct answer: B. The tennis ball suffers a greater change in momentum as compared with the lead ball
- A. The lead ball suffers a greater change in momentum compared with the tennis ball
- B. The tennis ball suffers a greater change in momentum as compared with the lead ball
- C. The momentum of the lead ball is greater than that of the tennis ball
- D. Both suffer an equal change in momentum
Explanation
The tennis ball suffers a greater change in momentum as compared with the lead ball. Change in the momentum = Final momentum - initial momentum
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Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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