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A spherical ball is placed between a ver...

A spherical ball is placed between a vertical wall and a movable inclined plane as shown. There is no friction between the wall and the ball, and no friction between the ball and the inclined plane. The coefficient of friction between the inclined plane and the ground is The system is in equilibrium.

The normal force exerted by the plane on the ball is

A

m g cos `theta`

B

m g sin `theta`

C

`(m g)/(cos theta)`

D

`(mg)/(sin theta)`

Text Solution

Verified by Experts

The correct Answer is:
c
Balancing forces on sphere N `cos theta =mg`
`rarr N= (mg)/(cos theta)`
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