Physics, 01.08.2020 07:01 marziel24

A block and tackle having a velocity ratio of 5 is used to raise a load of 400N through a distance of 10m. If the work done against friction is 100J. Calculate 1. Efficiency of the machine 2. The effort applied

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A block and tackle having a velocity ratio of 5 is used to raise a load of 400N through a distance o...