Mechanical Advantage and Velocity Ratio of a Screw Jack

What are the key components to consider when calculating the efficiency of a screw jack?

(i) What is the velocity ratio of the machine?

(ii) How can we determine the mechanical advantage of the machine?

(iii) What effort is required to raise a load of 1000N with the machine?

Efficiency Calculation of a Screw Jack

The efficiency of a screw jack is essential in understanding how effectively it converts input work into output work. Let's delve into the key components and calculations involved in determining the efficiency, velocity ratio, mechanical advantage, and effort required to operate a screw jack.