Лаг1989 задача №2.48

A ball of mass m = 70 g hits the vertical wall normally to it and bounces off it in the opposite direction at a lower speed. During the collision with the wall, the momentum of the ball changed to Δp = 2,1Ns. Over a period of time τ = 1.5 s after impact against the wall, the ball fell to the ground at a distance L = 2 m from it. Find the speed with which the ball flew to the wall.

Thank you for your purchase. If you have any questions, then write to the mail (see "information about the seller")