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Two balls A and B having masses 1 kg and...

Two balls A and B having masses 1 kg and 2 kg, moving with speeds 21 m/s and 4 m/s respectively in opposite direction, collide head on. After collision A moves with a speed of 1 m/s in the same direction, then the coefficient of restitution is

A

0.1

B

0.2

C

0.4

D

None

Text Solution

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The correct Answer is:
D
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MOTION-CENTRE OF MASS-Exercise - 1
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