Question

a car moving along a staright highway with speed of 72kmh¹ is brought to rest within a distance of 40 m a) what is the retardation of the car (assumed uniform) &b) how long does it take to stop​

Answer 1

Answer:

179

Explanation:

7200/40-1 because when he reach the ending point then ,last time he not take a rest

Answer 2

Answer:

The answer for a) is 10 ms^-2 and b) is 2 seconds

Explanation:

Explanation provided in picture.

I hope it helped...