Question -
Answer -
Retarding force, F = –50 N
Mass of the body, m = 20 kg
Initial velocity of the body, u =15 m/s
Final velocity of the body, v =0
Using Newton’s second law of motion, theacceleration (a) produced in the body can be calculated as:
F = ma
–50 = 20 × a
Using the first equation of motion, the time(t) taken by the body to come to rest can be calculated as:
v = u + at
=6 s