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A uniform sphere is place on a smooth ho...

A uniform sphere is place on a smooth horizontal surface and as horizontal force F is appied on it at a distance h above the surface. The acceleratioin of the centre

A

is maximum at h = 0

B

is maximum when h = R

C

is maximum when h = 2R

D

is independent of h.

Text Solution

Verified by Experts

The correct Answer is:
A
We have `(1)/(2)mv^(2)=mg(4-2)=2mg`
`v=sqrt(4g)=2sqrt(g)`
Now vertical component at `R = v sin 30^(@)=2sqrt(g).(1)/(2)=sqrt(g)`
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