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2. A worker is trying to move a 25 kg block of wood up a wooden ramp inclined at 15 degrees above the horizontal. If

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2. A worker is trying to move a 25 kg block of wood up a wooden ramp inclined at 15 degrees above the horizontal. If the worker pushes up the block at constant velocity what is the force on the block by the worker? Assume that you cannot ignore friction. (Hint: You will have to look up a coefficient of friction in your guided notes)

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