Carlo pushes a 35-kg box on a floor level and displaces it 5 m from its initial position. a. If the force applied to the box is 500 N, what must be the magnitude and the direction of the frictional force on the surface? b. How much work is done by Carlo and by the friction on the box? c. How much work is done on the box by the normal force and by gravity? d. What is the net work done on the box by all of the forces applied to it

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.