Question

A car moving with a velocity of 10 m/s. how far does it move in 45 minutes

Answer 1

Explanation:

Final velocity is zero.and acceleration is −ve

0=u

2

−2×a×s

s=

2a

u

2

s∝u

2

if car moving with a velocity of 10m/s can be stopped by the application of a constant force F in a distance of 20m, since the velocity is tripled stopping distance will become 3

2

=9times.

New stopping distance =9∗20=180m