Input work refers to the amount of work or energy that is put into a system. It is often measured in units of Joules (J) and is calculated by multiplying the force applied to an object by the distance it moves.
Mechanical advantage is a measure of the effectiveness of a machine in multiplying the force or distance applied to it. It is calculated by dividing the output force by the input force.
Mechanical advantage is related to input work because it is a measure of how much more work can be done with the help of a machine. A machine with a high mechanical advantage allows for less input work to produce a greater output work.
Examples of input work include pushing a car up a hill, lifting a box off the ground, and pedaling a bike. In each of these cases, energy is being put into the system to produce work.
Input work can be calculated by multiplying the force applied to an object by the distance it moves. Mechanical advantage can be calculated by dividing the output force by the input force. Both of these calculations require knowledge of the input and output forces and distances.