JAMB - Physics (2025 - No. 42)
The tangential force acting on an object that opposes it from sliding freely on the adjacent surface is called
Weight
Upthrust
Frictional force
Normal force
解释
Frictional force is the tangential force opposing an object's free sliding on an adjacent surface. It originates from surface irregularities and intermolecular attractions between materials, resisting relative motion or its initiation.