Q.

The coefficient of restitution e for a perfectly elastic collision is

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a

1

b

0

c

d

-1

answer is A.

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Detailed Solution

Since e=−(v1−v2)(u2−u1)=−velocity  of  separationvelocity  of  approach i)For perfectly elastic collision e = 1ii)For perfectly inelastic collision e = 0iii)For other collision 0 < e  < 1
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