Question

A car is moving with a velocity of 10m/s .The car stops after 5 seconds. What is its acceleration?

Answer 1

initial velocity is 10m/s final velocity is zero because the car stops time is 5 sec so acceleration = v-u/t after putting the values 0-10/5=-2. the acceleration shows negative sign that means the acceleration is also negative or retardation. hope it helps you

Answer 2

initial velocity (u) =10m/s,final velocity (v) =0m/s, time (t) =5 seconds, acceleration =v-u/t =0-10/5 =-10/5 =-2m/s^2