If you drop a 13.0kg ball from a height of 30m (neglect friction). a. How many Joules of Potential Energy does it have at the moment before dropping it? b. How many Joules of Kinetic Energy will it have when it is halfway through its fall? c. How fast is it going as it impacts the ground?

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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.