Question

4. A particle is moving along a circular path of radius 5 m with a uniform speed of
5 m/s. Find the time taken for half the revolution:-
A) (1/2)s
B) (27) s
C) (T)
D) (31/2)​

Answer 1

When the particle completes half revolution change in velocity

Δv=[5−(−5)]m/s=10m/s

Time taken to complete the half revolution is

t=πr / v​= π×5/5 = πs

Thus, average acceleration = Δv/t =10​/π m/s².

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