A 7.5-kg otter slides down a mud bank, starting from rest at the top. The sloping surface of the bank is 8.8 m long, and the top is 6.5 m above the base. The speed of the otter at the bottom of the bank is 9.2 m/s. a. How much mechanical energy was dissipated on the slope ? Show all work. b. Assuming all dissipated energy was due to friction, what was the average friction force on the otter during the slide? Show all work.

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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.