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Question

A particle moves in a circle whose radius is 20 cm with a linear speed of 10 ms1 . Then its angular velocity is ____ rad s1

A
100
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B
50
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C
25
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D
125
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Solution

The correct option is B 50
Radius, r=20 cm=20×102 m
Linear speed, V=10 m/s
Angular velocity is given by:
ω=vr
ω=1020×102
ω=0.5×102
ω=50 rad/s

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