Question

What will be the distance covered by vehicle after applying brakes with retardation it metre per second square if its velocity is 72 kilometre per hour

Answer 1

Answer:20

Explanation:

u= 72 km/hr=72*5/18=20 m/s

v= 0 km/hr= 0 m/s

a= -1 m/s²

ATQ

a=v-u/t

-1=0-20/t

-t=-20

t=20