# Ordinary scatter

A ball of mass $$\SI{10}{\kilo\gram}$$ hits a smooth horizontal surface with speed $$\SI[per-mode=symbol]{10\sqrt 2}{\meter\per\second}$$ at an angle of $$45^\circ$$. The coefficient of restitution between the ball and surface is $$\epsilon = \SI{0.5}{}$$ and the ball remains in contact with the surface for $$\SI{0.1}{\second}$$. Let $$F$$ be the instantaneous force exerted by the ball at any time during the collision.

Find the average value of the force, given by $$\langle F \rangle$$ in $$\si{\newton}$$.

×