The mechanical advantage of a lever can be defined as the ratio of the output force (resistance force) to the input force (effort force). Assuming the lever is 100% efficient, there are no energy losses due to friction or deformation.
To calculate mechanical advantage, we can use the following formula:
Mechanical Advantage (MA) = Length of Effort Arm (EA) / Length of Resistance Arm (RA)
Where:
- Length of Effort Arm (EA) is the distance from the applied effort to the fulcrum (pivot point)
- Length of Resistance Arm (RA) is the distance from the resistance force (load) to the fulcrum
If we know the lengths of the effort arm and resistance arm, we can plug those values into the formula to find the mechanical advantage. A greater mechanical advantage means less force is required to overcome the resistance.
Teh mechanical advantage (assume the lever is 100% efficient
1 answer
0 answers