It is the calculation of how much faster and easier a machine makes your work. To calculate mechanical advantage, you simply divide the resistance force by the effort force.
Q&A Related to "What Is Mechanical Advantage?"
 1. Find the mechanical advantage of a pulley system by noting how many doubled-up stretches of rope or line must shorten for the load to be lifted. Denote it with the letter n. For http://www.ehow.com/how_6573238_mechanical-advanta...
 To calculate the M.A. of a wedge, you divide the length of it by its thickness. http://wiki.answers.com/Q/What_is_the_mechanical_a...
 n. The ratio of the output force produced by a machine to the applied input force. http://www.answers.com/topic/mechanical-advantage