A skier is skiing down a hill before hitting a flat section. The initial velocity of the skier is zero. Assume that friction and air resistance are negligible. A. Find the gravitational potential energy at point A. (h = 20 m) B. If KE at point C is equal to the gravitational potential energy at point A, find the velocity of the skier at C.

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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.