A pulley system has 5 pulleys in all, its velocity ratio is

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less than 5

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more than 5

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none of these

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Solution

The correct option is A
5

Explanation
Effort = 1/2 the load
If a pulley system is perfectly efficient the mechanical advantage and the velocity ratio are both equal to the number of pulleys.
Velocity Ratio(V.R) = No. of pulleys used = 5
Hence, the answer is 5

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An actual pulley system always has a mechanical advantage less than a velocity ratio. It is because:

4

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