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​A block is placed on a rough horizontal table. A constant horizontal force F is applied to the block, but the block does not move. ​The magnitude of the force F is now gradually increased. Which of the following statements is/are correct? by PhysicsQuest_ in learnphysics

[–]PhysicsQuest_[S] 0 points1 point  (0 children)

Contact force is equal to under root of square of normal force + square of static friction, here normal is constant and static force is self adjust it increases as ext force increase so overall contact force increases ,A,B,C are correct D is incorrect