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A plank of mass M is placed over smooth ...

A plank of mass `M` is placed over smooth inclined plane and sphere is also placed over the plank. Friction is sufficient between sphere and plank. If plank and sphere are released from rest, the frictional force on sphere is -
.

A

depends on `m_(1)`

B

depends on `m_(2)`

C

`0`

D

`=mum_(1)g cos theta`

Text Solution

Verified by Experts

The correct Answer is:
C
`m_(1)g sin theta=F_("pseudo")......(1)`
`m_(1)g sin theta-f=m_(1)g sin thetarArrf=0`
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