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130. A hollow cylinder is rolling on an inclined plane, inclined at an angle of 

A hollow cylinder is rolling on an inclined plane, inclined at an angle of  30° to the horizontal. Its speed after travelling a distance of 10 m will be

(a)           49 m/sec

(b)          0.7 m/sec

(c)           7 m/sec

(d)          Zero

Ans. c

(9)

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