Question

An effort of 250N raises a lot of 1000N through 5m in a pulley system. if the effort moves 30m what is the M.A , V.R nad efficiency of the pulley system.
M.A.=mechanical advantage
V.R.=velocity ratio
N= newton​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

VR=5

M.A=L/E

=1000/250

=4

Efficiency=M.A/V.R×100%

=4/5×100%

=80%