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Problem 3: A person pulls a block of ice across a frozen part of a lake. They apply a force to the
block that is directed 25 ° above the horizontal. The block has a mass of 40 kg. The coefficient of
kinetic friction between the block and the frozen lake is μ 0.03. What must be the magnitude of
the force applied by the person in order for the block to have a constant velocity?
=
F'
25°
h

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