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Surface area of a solid

A solid cylin...

Question

A solid cylinder rolls down an inclined plane of height 6m and reaches the bottom of the plane with angular velocity of 2 rad/s. The radius of the cylinder must be

A

4 m

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B

4.47 m

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C

5.55 m

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D

5.26 m

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Solution

The correct option is B
4.47 m

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