The block was pushed up the slope. The block went up the slope and then began to slide down to its initial position. The coefficient of friction between the block and the warp is 0.30. What is the speed of the block when it comes back down and reaches its initial position? 1) It is the same as when going up. 2) It is smaller than when going up. 3) It is bigger than when it goes up. 4) It is impossible to know from the information given.

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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.