Science, asked by pradipkumarshah654, 7 months ago

A load of 1000N is lifted by using 250N effort in a combined double pulley block system.
Calculate the mechanical advantage, velocity ratio and efficiency of the machine.

Answers

Answered by pappalaprasad984

1

Answer:

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Answered by prakul76

1

Answer:

may be 4:1

because when we divide

1000÷250

=4

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