Negmaa Damitta
طالب ب00
تعلم
14533الترتيب
0نقاط
0الميداليات
مساهمة
82الترتيب
25نقاط
0الميداليات
It's a force between two surface in the contact that acts in the direction opposite to the direction of the movement causes the object to slow down and stop
