A box is pushed across the floor for a distance of 5 meters with an inclined force of 50 Newtons, which makes an angle of 20 degrees with the floor, in 5 seconds. a. Calculate the work done in J. b. Calculate the power expended in W.

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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.