When a force of 4

We have, for the body:

Force = 40 N

Acceleration = 5 m s^-2

From Second law of motion

Force = mass × acceleration

OR

Here we have been given, for the body:

Mass = 80 kg

Initial velocity, u = 5 m s^-1

final velocity, v = 25 m s^-1

Time, t = 2 sec

From the second law of motion, we know that the rate of change of momentum is equal to force applied. Therefore