A 17 kg child carries a 910 g teddy bear up the steps of a slide that is 1.6 m above the ground. a. What is the change in potential energy of the teddy bear when it gets to the top of the slide? b. The teddy bear then goes down the slide, which makes a 20⁰ angle with the ground, what is the change in potential energy of the teddy bear when it returns to the ground? c. What is the total change in potential energy of the teddy bear?

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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.