Question

a car driver decreases the speed of a car from 25 m /s to 10m/s in 5 seconds. find the acceleration of the car .

Answer 1

Initial velocity = 25m/s
Final Velocity = 10 m/s

Time Taken = 5 sec

Acceleration = v-u/t
10-25/5
-15/5
=-3 m/s^2

Answer 2

Hey MATE!

Initial velocity (u) = 25m/s

Final velocity (v) = 10m/s

t = 5sec

We can apply v = u +at

10 = 25 + a(5)

-15 = 5a

a = -3m/s²

Hope it helps

Hakuna Matata :))