Keep the track tilted at 14° with the horizontal. Put the friction block on the track surface at the top of the track. Let the friction block slide downwards. The length of the track is 65 cm. Starting from zero speed at the top of the track, what will be the speed of the friction block as it reaches the bottom? Write your answer in m/s. Use Hk = 0.12 and mass of the friction block 400 grams.

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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.