A body describe a semicircular path of radius 7m in 11s.Find the speed and magnitude of velocity of the body?1m
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The speed and magnitude of velocity of the body are :
Radius of semicircular path, r = 7m
Time taken to cover path = 11 s
Distance covered = πr = 22×r/7 m = 22×7/7 = 22 m
Displacement = 2r = 14 m
Speed = distance covered/total time taken
= 22 m/ 11 s = 2 m/s
Velocity = displacement / time
= 14 / 11 m/s
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