Physics, 24.06.2019 13:10 dragador7601
Ablock and tackle is used to raise a 72.0 n crate 12.3 m from the loading dock to the ship. this requires a force of 25.0 n to be applied by the longshoreman. (a) what is the mechanical advantage of the block and tackle? (b) how much rope must be pulled? note: assume that ima = ma. (c) the longshoremen have only a 40 m rope that they are told not to cut. they use this for the block and tackle. how does this affect the efficiency of the block and tackle
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Ablock and tackle is used to raise a 72.0 n crate 12.3 m from the loading dock to the ship. this req...
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