Question

 Q. A force of 3N acts on a mass of 0.5kg at rest for 10s. Find the final velocity and the momentum of the body after 10s?

Answer 1

In the physics:

Force = mass x velocity
                        time
therefore  3N =  0.5kg x velocity (v)     3= 0.5v      0.5v= 30  v= 30/0.5  = 60 m/s
                                     10s                    10

velocity = 60 m/s

Momentum

momentum = mass x velocity
                 = 0.5kgs x 60m/s
                 = 30 kgm/s