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Velocity Ratio

In a certain ...

Question

In a certain machine a force of $100$ N moves down a distance of $20$ cm in order to raise a load of $220$ N through a height of $1$ cm. Calculate the velocity ratio of machine.

A

10

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B

22

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C

20

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D

260

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Solution

The correct option is C 20
Distance by effort = 20cm
Distance moved by load = 1 cm
$V R = \frac{D i s t a n c e m o v e d b y e f f o r t}{D i s t a n c e m o v e d b y l o a d} = \frac{20 c m}{1 c m} = 20$

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