In physics, resistance force is the force which an effort force must overcome in order to do work on an object via a simple machine. Resistance force, like most other forces, is measured in newtons or in pounds-force.
For an ideal (frictionless) mechanism in which no energy is lost, resistance force obeys the relation:
where:
- R equals resistance force
- DR equals resistance distance
- E equals effort force
- DE equals effort distance
Resistance force is used to calculate the work output using the following equation:
Famous quotes containing the words resistance and/or force:
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—Edgar Allan Poe (1809–1849)
“We do not wish to injure you.... But if you again plunge your knives into the breasts of our people, I shall send a force which will severely punish you for your cruelties.”
—Andrew Jackson (1767–1845)