Question

A certain force acting on a mass of 15kg for 3s, gives it a velocity of 2m/s. Find the magnitude of force?

Answer 1

u=0 ; v=0 m/s ;

v=u+at --> 2=0+a(3) --> a=2/3 m/s^2

F=ma --> 15 x (2/3) = 10 kgm/s^2