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Question

The angular velocity of a wheel is 70rad/s. If the radius of the wheel is 0.5m, then linear velocity of the wheel is

A
70m/s
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B
35m/s
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C
30m/s30m/s
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D
20m/s20m/s
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Solution

The correct option is B 35m/s
Given : w=70 rad/s r=0.5 m
Its linear velocity v=rw=0.5×70=35 m/s

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