Correct: Gravitational force is attractive force, Force unit is Newton in SI system, Force is a vector, The friction force acts in the opposite direction to the motion of the body., If the net force on the system is zero, then it is in equilibrium, Incorrect: Gravitational force is repulsive force, The dimensional formula for Force is: M0L1T-2, The friction force acts in the parallel direction to the motion of the body., Force can only be attractive, Force can only be repulsive,

FORCE

بواسطة
طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟