Question

A car moving at a velocity of 72km/h. Suddenly brakes are applied so as to stop the car at a distance of 10m. Find the retardation produced by the car?

Answer 1

Answer:

20m/s^2

Explanation:

u=72Km/h

=>u=20m/s

s=10m

v=0m/s

2as=v^2-u^2

a=-400/20

a=-20m/s^2

Here a is negative as for is retarding.........