Momentum Değişimi Hesaplama

10. $m$ kütleli cisim duvara $\vartheta$ hızıyla çarpıp, şekildeki gibi $\vartheta$ hızıyla dönüyor. Buna göre, cismin momentum değişimi kaç $m\vartheta$ dır?

Soruda görsel içerik var: A diagram shows a ball of mass $m$ striking a horizontal surface (labeled as a wall/floor) at an angle. The ball approaches the surface from the top-left at toward the bottom-right with speed $\vartheta$. The angle between the incident velocity vector and the surface is $60^\circ$. After the collision, the ball moves away from the surface toward the top-right with the same speed $\vartheta$. The angle between the reflected velocity vector and the surface is also $60^\circ$. A handwritten note below the text says $\sqrt{3} \vartheta$.