Which description does the phrase "mechanical advantage" most closely relate to?

A. The same amount of work using less force.
B. The same amount of power using less work.
C. The same amount of work using less power.
D. The same amount of power using less pulleys.

Respuesta :

the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine. I would say the answer is D, but i'm not sure. :)