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A body goes round a circle of radius 0.5 m at 4 rad/s. Its linear speed is:
A2 m/s
B8 m/s
C0.5 m/s
D4 m/s
Answer & Solution
Correct answer: A. 2 m/s
v = omega r = 4 x 0.5 = 2 m/s.
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