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The figure shows a smooth inclined plane...

The figure shows a smooth inclined plane of inclination `theta` fixed in a car. A sphere is set in pure rolling on the incline. For what value of the acceleration of the car in the horizontal direction the sphere will continue pure rolling?

A

`g cos theta`

B

`g sin theta`

C

`g cot theta`

D

`g tan theta`

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The correct Answer is:
D
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