Question

Brakes are applied to a car travelling at 30 m/s .It's velocity is reduced to 20m/s in 5 sec . Calculate the retardation produced by the brakes . Also calculate the distance covered in those 5 sec. 3mark​

Answer 1

Answer:

a=(v-u)/t

v=20m/s

u=30m/s

t=5s

(20-30)/5

-10/5

a= -2m/s²