Calculateur d'Avantage Mécanique Gratuit

Calculez l'avantage mécanique d'une machine simple.

Output Force (Load)

Input Force (Effort)

Mechanical Advantage

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Mechanical Advantage vs Output Force (Load)

Formule

Mechanical advantage describes how much a simple machine multiplies the input force.

MA = F_output / F_input

An MA greater than 1 means the machine amplifies force; less than 1 means it amplifies distance/speed instead.

A lever lifts a 500 N load with 100 N of effort.

Can mechanical advantage be less than 1?

Yes. Some machines trade force for speed or distance. A baseball bat has MA less than 1 but amplifies the speed of the tip.

Does a machine with high MA save energy?

No. By conservation of energy, what is gained in force is lost in distance. Work input equals work output (minus friction losses).

What are examples of simple machines?

Levers, pulleys, inclined planes, wedges, screws, and wheel-and-axle systems are the six classical simple machines.

Apprendre

Calculate force from mass and acceleration.

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Calculate torque from force and lever arm.