Question

an object of mass 5 kg is moving with velocity of 10ms^.a force is applied so that in 20 seconds it attains a velocity of 25 ms^. What is the force applied on the object?

Answer 1

acceleration = (V-U)/t

= (25-10)/20

= 15/20 = 3/4 ms-¹

Force = mass × acceleration

=5kg × (3/4)ms-¹

=15/4 N