Question

what is mechanical advantage
state it's S.I. unit​

Answer 1

Explanation:

Mechanical advantage (also written as MA in formulas) is the factor by which a machine multiplies force. ... There is no unit for mechanical advantages since the unit for both input and output forces cancel out.

Answer 2

Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. The device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever...

NO SI UNIT...