A child moving on a circular motion track of radius 40 m completes one revolution in 5 min? What is average speed and average velocity of child
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Explanation:
T=period=5minutes=300s
F=frequency 1/T=1/300
w=angular velocity=2πF= 2 × 22/7 ×1/300=11/525 =0.2095
r=radius=40m(from the question)
V=velocity=wr=0.2095×40=8.38ms–1
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