Question

A body of mass 5kg is moving with a velocity of 10 m/s. A force is applied to it so that in 25 seconds, it attains a velocity of 35 m/s. Calculate the value of the force applied.

Answer 1

Mass of the body = 5kg 

Initial velocity, u = 10 m/s 

Final velocity, v = 35 m/s 

Time, t = 25s 

Acceleration, a = (v-u)/t = 1 m/s² 

Force = ma = 5N