24-02-2015
Physics

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A crate is dragged 4.0m along a rough floor with a constant velocity by a worker applying a force of 400N to a rope at an angle of 30∘ to the horizontal.

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24-02-2015

OK. We've got that much. The worker does 1,385.6 joules of work
on the crate. What is your question ?

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