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A 70 kg block is pulled at a constant speed of 6.4 m/s across a horizontal floor by an applied force of 102 N directed 37° above the horizontal. What is the rate at which the force does work on the block?

  • Physics -

    r = F * d/t = F*V.

    r=F*V = 102cos37 * 6.4=521.3 Joules/s.

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