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in Physics by (74.3k points)

Two identical balls, of equal masses A and B are lying on a smooth surface as shown in fig. Ball A hits ball B (which is at rest) with a velocity v = 16 m/s. What should be the minimum value of coefficient of restitution between A ad B so that B just reaches the highest point of inclined plane.

(a) 2 / 3

(b) 1 / 4

(c) 1 / 2

(d) 1 / 3

1 Answer

+1 vote
by (70.0k points)
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Best answer

Correct option: (b) 1/4

Explanation:

v = 16 m/s

Let velocity of B after collision be v2 andn that of A be v1 . Then

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