[تفاصيل]

جمعة مباركة ع الجميع :)

د.علي ممكن توضحلي النقطة هاذي في شابتر 9 ( elastic collisions .stationary target :

v2f is always positive the initially stationary target body with mass m2 always moves forward we see that v1f may be of either sign (the projectile body with mass m1 moves forward if m1 larger than m2 but rebounds if m1 smaller than m2 ..

شكـــــــــــــراً ،،