A ball of mass $m$ moving with velocity $v$ collides head-on with the second ball of mass $m$ at rest. If the coefficient of restitution is $e$ and velocity of first ball after collision is $v_1$ and velocity of second ball after collision is $v_2$ then
A ball of mass $m$ moving with velocity $v$ collides head-on with the second ball of mass $m$ at rest. If the coefficient of restitution is $e$ and velocity of first ball after collision is $v_1$ and velocity of second ball after collision is $v_2$ then
- A
$v_1=\frac{(1+e) u}{2}, v_2=\frac{(1-e) u}{2}$
- B
$v_1=\frac{(1-e) u}{2}, v_2=\frac{(1+e) u}{2}$
- C
$v_1=\frac{u}{2}, v_2=-\frac{u}{2}$
- D
$v_1=(1+e) u, v_2=(1-e) u$
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