Question

Two balls undergo a perfectly elastic head-on collision, with one ball initially at rest. If the incoming ball has a speed of 200 m/s .

E) What is the final speed of the incoming ball if the stationary ball is much more massive than the incoming ball? Express your answer using two significant figures.

F) What is the final direction of the incoming ball with respect to the initial direction if the stationary ball is much more massive than the incoming ball? Forward, backward, or not moving?

G) What is the final speed of the stationary ball if it is much more massive than the incoming ball? Express your answer using two significant figures.

H) What is the final direction of the stationary ball with respect to the initial direction of the incoming ball if the stationary ball is much more massive than the incoming ball? Forward, backward, or not moving?

Answer #1

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