Velocity Ratio

What is velocity ratio? Explain with formula.

What do you mean by effort point and load point in a machine?

An effort of $500 \mathrm{N}$ is applied through a distance of $0.50 \mathrm{m}$ on a machine, whose efficiency is $90\%$ such that resistance is overcome through a distance of $0.04 \mathrm{m}$. Calculate mechanical advantage.

Calculate velocity ratio of a machine which can overcome a resistance of $500 \mathrm{N}$ through a distance of $0.12 \mathrm{m}$, when an effort of $100 \mathrm{N}$ acts through a distance of $0.72 \mathrm{m}$.

The velocity ratio (VR) for a machine is
 

What is the ratio of number of teeth on the driving wheel to that on the driven wheel?

(Choose from: Velocity ratio/ Mechanical advantage/ Gear ratio)

For a movable pulley, $MA=2, \eta =100\%$, and what will be its $VR$?

What quantity is equal to the total number of stands of tackle supporting the load?

What word we used to call the resistive or opposing force against which a machine works?

Define the term velocity ratio, state its unit.

_____ (Load / Effort / Fulcrum) is the resistive or opposing force against which a machine works.

What is the velocity ratio of a block and tackle system with six pulleys if an effort of $2000 \mathrm{N}$ is required to raise a load of $5000 \mathrm{N}$ downward?