Question

The brakes applied to a bus produce an acceleration of 5 m/s2 in the opposite direction to the motion. If the bus takes 3 seconds to stop after appliocation of brakes, calculate the distance (in metre) coered by the bus in that time duration.​

Answer 1

Answer:

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

⇒s=12 m