Standing at the edge of a cliff 30.6 m high, you drop a ball.Later, you throw a

Question

Standing at the edge of a cliff 30.6 m high, you drop a ball.Later, you throw a second ball downward with an initial speed of 11.6 m/s. Part A Which ball has the greater increase in speed when it reaches the base of the cliff, or do both balls speed up by the same amount? O O The first ball has the greater increase in speed The second ball has the greater increase in speed. Both balls speed up by the same amount Submit Reguest Answer Part B This question will be shown after you complete previous question(s). Provide Feedback Next )

Explanation / Answer

Both balls speed up by the same amount,

Because The height to which it bounces h=e2h.

Here e is the coefficient of restitution, e=(h'/h)1/2.

So, height to which it bounces is depends upon the height of a cliff (h). So the speed is also same for both balls after bounce.

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