A ball of mass m moving with a constant velocity strikes against a ball of same at rest. If e = coefficient of restitution, then what will be the ratio of velocity of two balls after collision ?
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a
1−e1+e
b
e−1e+1
c
1+e1−e
d
2+ee−1
answer is A.
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Detailed Solution
As u2=0 and m1=m2 , therefore from m1u1+m2u2=m1v1+m2v2 we get u1=v1+v2 Also, e=v2−v1u1=v2−v1v2+v1=1−v1/v21+v1/v2 Which gives v1v2=1−e1+e