The force acting on a particle of mass is indicated by the force-time graph as shown. The change in

Question

The force acting on a particle of mass  is indicated by the force-time graph as shown. The change in momentum of the particle over the time

Professor PC Thomas Classes · Answer

Change in momentum = Area under F-t graph. Area 1 (triangle) = $\frac{1}{2} 	imes 2 	imes 4 = 4 \mathrm{~Ns}$. Area 2 (rectangle) = $2 	imes (-2) = -4 \mathrm{~Ns}$. Area 3 (rectangle) = $1 	imes 3 = 3 \mathrm{~Ns}$. Total change in momentum = $4 - 4 + 3 = 3 \mathrm{~Ns}$.