Question

a ball of mass 20kg is moving with a speed of 5m/s.calculate the time taken by the body to come to rest when a constant retarding force of 40N is applied on it​

Answer 1

Answer:

2.5 seconds

Explanation:

Acceleration=F/m=40/20=2 m/sec²

Thus,

v=u+at

0=5-2t

t=5/2=2.5sec.

(Acceleration is negative because it opposes the motion, that is it is deceleration)

Answer 2

hi Buddy

here is your answer