23. In one instance, an object (m = 4.0 kg) was located 3.0 m above the ground, and was freely-falling 5.0 m/s downward. What were the gravitational potential, kinetic, and total mechanical energies of the said object, respectively? U = 36.0 J; K= 196.0 J; E = 67.6 J U = 196.0 J; K = 36.0 J; E = 67.6 J O U=117.6 J; K= 50.0 J; E = 167.6 J OU 100.0 J; K= 117.6 J; E = 167.6 J 24. An ideal roller coaster (m= 1000 kg) is 30 m above the ground while. moving at a speed of 70 m/s. What is its total mechanical energy? 294 000 J O 1 140 000 J O2 140 000 J O 2 744 000 J

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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.