A ball A of mass m falls under gravity from a height h and strikes another ball B of mass m which is supported at rest on a spring of stiffness k. Assume perfect elastic impact. Immediately after the impact

the velocity of both balls is 1/2

A ball A of mass m falls under gravity from a height h and strikes ano

1.	A ball A of mass m falls under gravity from a height h and strikes another ball B of mass m which is supported at rest on a spring of stiffness k. Assume perfect elastic impact. Immediately after the impact
A.	the velocity of ball A is 1/2
B.	the velocity of ball A is zero
C.	the velocity of both balls is 1/2
D.	None of the above
Answer» C. the velocity of both balls is 1/2

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A ball A of mass m falls under gravity from a height h and strikes another ball B of mass m which is supported at rest on a spring of stiffness k. Assume perfect elastic impact. Immediately after the impact

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