A sphere is moving at some instant with horizontal velocity vo in right and angular velocity -in anti clockwise sense- If - v c - - - R - the instantaneous centre of rotation is

The correct option is B At the top of the sphereThe top of sphere being at instantaneous rest →v=v_c Rω=0 is the instantaneous center of rotation. #160; ...

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Byju's Answer

Standard XII

Physics

Instantaneous Axis of Rotation

A sphere is m...

Question

A sphere is moving at some instant with horizontal velocity {v}_{o} in right and angular velocity \omega in anti clockwise sense. If $| v_{c} | = | ω R |$ , the instantaneous centre of rotation is

At the bottom of the sphere

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At the top of the sphere

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At the centre of the sphere

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Anywhere inside the sphere

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Solution

The correct option is B At the top of the sphere
The top of sphere being at instantaneous rest $\to v = v_{c} - R ω = 0$ is the instantaneous center of rotation.

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A sphere is moving at some instant with horizontal velocity {v}_{o} in right and angular velocity \omega in anti clockwise sense. If |vc|=|ωR|, the instantaneous centre of rotation is

The correct option is B At the top of the sphereThe top of sphere being at instantaneous rest →v=vc−Rω=0 is the instantaneous center of rotation.

A sphere is moving at some instant with horizontal velocity {v}_{o} in right and angular velocity \omega in anti clockwise sense. If $| v_{c} | = | ω R |$ , the instantaneous centre of rotation is

The correct option is B At the top of the sphere
The top of sphere being at instantaneous rest $\to v = v_{c} - R ω = 0$ is the instantaneous center of rotation.