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A smooth wedge of mass M is pushed with ...


A smooth wedge of mass M is pushed with an acceleration `a=gtantheta` and a block of mass m is projected down the slant with a velocity v relative to the wedge.
Q. The normal reaction offered by ground to the wedge is:

A

`(M+m)g`

B

`(M+m)gcostheta`

C

`Mgsin^2theta+Mg`

D

`(M+m)g+mgcos^2theta`

Text Solution

Verified by Experts

The correct Answer is:
A
Since block is moving with zero acceleration relative to wedge `implies`reaction force`=mg`
Normal reaction offered by ground `N_G=Mg+mg`
`=(M+m)g`
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