Question

Define velocity ratio. Will the velocity ratio of a machine change with change in its dimensions?

Answer 1

Answer:

the ratio of a distance through which any part of a machine moves to that which the driving part moves during the same time is called velocity ratio.

Explanation:

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Answer 2

Explanation:

Velocity ratio is also defined as the ratio of a distance through which any part of a machine moves, to that which the driving part moves during the same time. An object has a mechanical advantage if it exerts a force higher than the velocity ratio. Velocity ratios are calculated by dividing the driver gear by the driven gear. The driver gear or pulley is the one connected to the power - e.g. the pedals on a bicycle or the motor. To calculate the speed of the driven gear - multiply the speed of the driver gear by the velocity ratio.