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Q.

A ball A moving with a certain velocity collides, with another ball B of the same mass at rest. If the coefficient of restitution is 0.5, the ratio of the velocities of A and B just after the collision is

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a

3

b

0.75

c

0.25

d

1/3

answer is D.

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Detailed Solution

VAVB=V1V2=1−e1+e=1−0.51+0.5=0.51.5=13
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