Question


A block of mass m = 364 g is dragged with a string across a rough horizontal table. The string tension is T = 3.59 N, and it pulls upward at an angle of ¦Õ = 47.0¡ã with the horizontal. At one particular instant the block is moving at a speed of v = 6.50 m/s. The coefficient of kinetic friction between the block and the table is ¦Ìk = 0.639.
What is the power supplied to the block by the string tension?
What is the power supplied by the force of friction?

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