A block and tackle system consisting of 5 pulleys is used to raise a load of 400 N through a height of 10 m. If the work done against friction is 100 j, calculate
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work done = 100 Joules + m g h = 100 + 400*9.81*10
Statc
A block and tackle consisting of 5pulleys is used to raise aload of 400N through a height of 10m, if the workdone against friction is 1000j ,calculate(i)workdone by the effort,(ii)efficiency of the system,(iii)the effort applied.
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