Question

Express average velocity when the velocity of a body changes at non-uniform rate and a uniform rate.

Answer 1

When the velocity of a body changes at a uniform rate then the average velocity is the mean of initial velocity & final velocity for a specific period of time.

Average Velocity = (Initial velocity + final velocity) / 2

When the velocity of a body changes at a non uniform rate then its average velocity is net displacement covered by the total time taken

Average Velocity = Net displacement / total time taken

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Hope this will help you....

Answer 2

When the velocity of a body changes with uniform rate the avg velocity is mean of intial velocity and final velocity.

Avg velocity=intial+final/2

When the velocity of the body changes non uniformly then the avg velocity is displacement upon total time taken

Avg velocity=displacement/total time taken