Question

The material point with mass m = 500 g performs rectilinear motion and is under the action of constant force F = 50 N. Calculate the change of momentum during delta t1; = 0.5 s and delta t2 = 2 s

Answer 1

We can find the change of momentum from the impulse momentum change equation:

$$J=\Delta p=F_{avg}\Delta t,$$ $$\Delta p=50\ N\cdot(2\ s-0.5\ s)=75\ N\cdot s.$$