Question

brakes are applied to a car to produce an acceleration of 20 metre per sec in opposite direction of of motion if the car takes 5 seconds to stop after the application of brakes find how much distance it traveled​

Answer 1

Answer:

Correct option is

A

12 m

Given:

Accerleration: a=−6 m/s

2

Time t=2 s

Final velocity, v=0 m/s

v=u+at

0=u−6×2

u=12 m/s

s=ut+

2

1

at

2

s=12×2+

2

1

×(−6)×4