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,

さんの投稿です

リーダーボード

表示スタイル

オプション

テンプレートを切り替える

自動保存: を復元しますか?