If an object weighing 12 N is released from rest at a height of 3 m above the ground.  a. How much potential energy has the object lost when it is at a height of 1 m from the ground? b. What is the amount of kinetic energy the object has gained at this point? c. What is the velocity of the object at this position?

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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.