Question

Q16. We know that acceleration is the rate of change of velocity. A car is moving with constant
velocity. Show that the acceleration is zero.​

Answer 1

Answer:

Acceleration is rtae of change of velocity

This means that for two different points of time namely t1 and t2 the velocity if the car should be different for the car to be showing acceleration.

But since the car is moving with constant velocity hence velocity at t1=u would be equal to velocity at t2=v.

Since acceleration=velocity/time= (v-u)/t2-t1

Since v=u because of constant velocity.

therfore the equation will be=0/t2-t1 which is equal to zero. Hence proving that the acceleration is zero.

Answer 2

velocity time graph shows in the increase or decrease in acceleration. when the velocity is constant that means acceleration is 0