Force Is Applied On Body Of Mass 20 Kg Moving With Velocity Of 40 Ms 1

A force is applied on a body of mass 20 kg moving with a velocity of 40 ms-1. The body attains … in 2 seconds. Calculate the work…

Answers:

Work done, W = 1/2m (v₂² – v₁²)

= 1/2 x 20 (50² – 40²) = 9000 J