Part 1 A copper block with mass m = 100 g, is held at rest on a glass surface, where the plane makes an angle q = 30° with the horizontal. The magnitude of the coefficient of kinetic friction, μK, between the copper block and the inclined glass plane is μK = 0.04. Calculate the acceleration of the copper block when it is released from rest. Part 2 The copper block slides down the plane, after being released. Work  is done by the force of gravity, as the block slides down the plane. If the block slides  24 cm, how much work is done?

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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.