The weight of a box sitting on the floor points directly down. The normal force of the floor on the box points directly up. Need these two forces have the same magnitude? Explain.
Solution: Step 1 of 1 Here the force exerted by the floor on the box is equal force exerted by the box on floor is equal this is a reason box will be at rest and both forces are having equal magnitude but opposite in direction when the external force acts on the body then only body moves.