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A ball of mass 100gm falls from 5m on a ...

A ball of mass `100gm` falls from `5m` on a floor. After each collision the speed of ball is halved. The total momentum transferred by the ball to the ground is (in kgm/s)

A

Rate of change of momentum of system (block + wedge) is equal to `215N`

B

`a=7.5m//s^(2)`

C

Kinetic energy of block is increasing with rate `562.5t`, where `t` is time in sec.

D

Work done by normal on the wedge is negative.

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