Question

A car travels at an initial velocity of 10m/s applies brakes that brings the car to rest in 5 se cond find the acceleration

Answer 1

Answer:

(-2m/s^2)

Explanation:

Initial Velocity=u=10m/s

Final Velocity=v=0m/s(Since the car is brought to rest)

Time Taken=t=5s

Acceleration=Change in Velocity/Time Taken

a=v-u/t

a=0-10m/s/5s

a=(-10m/s)/5s

a=(-2m/s×s)

a=(-2m/s^2)

Answer 2

Answer:

-2 m/s ^ 2

Explanation:

u = 10 m/s

v = 0 m/s

t = 5 s

a = v-u / t

= 0 - 10/5

= -10/5

= -2 m/s ^ 2

Hope this helps :)