What is the change in momentum between the initial and final points of the projectile path, if the range is maximum? Share with your friends Share 13 Satyendra Singh answered this The initial velocity of the particle during the point of projection is given as:ui = u cosθ i^ + u sinθ j^velocity at the final poin when the body reaches the ground = uf = u cosθ i^ - u sinθ j^change in velocity∆u = uf - ui ∆u =u cosθ i^ - u sinθ j^ - u cosθ i^ + u sinθ j^∆u =-2 u sinθ j^for maximum range θ = 45o∆u =-2 u sin45 j^∆u = -22u j^∆u = 2 uTherefore change in momentum ∆p = 2u ×m 38 View Full Answer