Question

a particle moves along a circular path of radius 10m. it completes half revolution in 5s.the average velocity of particle is​

Answer 1

Explanation:

the particle completes half revolution change in velocity

Δv=[5−(−5)]m/s=10m/s

Time taken to complete the half revolution is

t= vπr

= 5

π×5 =πs

Thus, average acceleration =

tΔv = π1