vv urgrnt Q6: A person completes a semicircular path of radius 7cm in 4 seconds. Calculate the the velocity of the body.
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Explanation:
distance = circumference/2 (since it's a semi-circular path)
distance = pi * r = 7pi cm
time = 4 seconds
distance = velocity * time
7pi = velocity * 4
velocity = 7pi /4 = 1.75pi cm/s
velocity = 0.0175 pi m/s
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