Physics, asked by shovini2534, 1 year ago

In single pulley mechanical advantage is less than one and velocity ratio is one still it is used why

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Answered by Trebhuvan
0

The mechanical advantage for an actual machine is equal to the product of its efficiency and velocity ratio. This is because the output work is always less than the input work, so the efficiency is always less than 1 because of energy loss due to friction. ... This is the expression of the mechanical advantage of a lever

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