Question

an object of 40 kg mass is moving with velocity 2m per sec a force applied on it increase it velocity to 5 m per sec find the done by force​

Answer 1

Answer:

420J

Explanation:

Wd=change in kinetic energy

=1/2m(v^2-u^2)= 1/2(40)(21)

=420J

Answer 2

Answer:

hope it helps u.................