Question

a car is moving with an initial velocity of 50 metre per second is brought to rest in 10 second find its acceleration

Answer 1

acceleration is -5m/s

Answer 2

Initial velocity, u = 50m/s

Final velocity, v = 0m/s

Time, t = 10s

Acceleration, a = v - u / t

=0 - 50 / 10

= -50 / 10

a = -5m/s^2