Question

On turning a corner a car driver driving at 36km/h,finds a child on the road 55m ahead.
He immediately applies brakes,so as to stop within 5m of the child . Calculate the retardation produced and the time taken by the car to stop.

Answer 1

Answer: acceleration=-12.96m/s

retardation = 12.96m/s

time=2.78s

Explanation:

Answer 2

Answer: u=10 v=0 s=55-5=50

V2-u2=2as

10*2=2×50=1ms*

T=v-u/a. =0-10/1= 10sec.

Explanation: