Question

a particle moves on acircular path of radius 7m with constant speed 7ms-1 .1)the magnitude of average velocity during relovition through quarter circle​

Answer 1

Answer:

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

= π/10

=2m/s

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