Question

1. A body of mass m is moving with a uniform velocity u. A force is
applied on the body due to which its velocity increases from u to v. How
much work is being done by the force?​

Answer 1

Answer:

Using third equation of motion,  v2−u2=2as

∴a=2s(v2−u2)

We know  F=ma 

⟹  F=2sm(v2−u2)

Work done  W=Fs

Thus W=2sm(v2−u2)s

W=21m(v2−u2).

This is the work done.

HOPE IR HELPED U

THANK U FOR CHOOSING ME

MARK ME BRAINLY PLSS