Two balls of same mass are dropped from the same height onto the floor. The first ball bounces upwards from the floor elastically. The second ball stricks to the floor. The first applies an impulse to the floor of `I_(1)` and the second applies an imupulse `I_(2)`. The impulses obey :-

Options

A. `I_(2) = 2I_(1)`
B. `I_(2) = (I_(1))/(2)`
C. `I_(2) = 4I_(1)`
D. `I_(2) = (I_(1))/(4)`

Answer

B

Explanation

`m u - I_(1) = -m u :. I_(1) = 2m u` &
`m u - I_(2) = 0 rArr I_(2) = m u` (for `II^(rd)` ball) `:. I_(2) = 1//2`