A ramp is 3 meters long and 1.5 meters high. The ramp is used to move a crate into a warehouse If it takes 60 N of force to move a crate that weighs 105 N up the ramp, what is the AMA?

A. 1
B. 2
C. 1.5
D. 1.75

Option D

Explanation:

We want the AMA here, not the IMA. The " Actual Mechanical Advantage " is associated with the force, not distance - so the ramp being 3 meters long and 1.5 meters high is unnecessary information. However, it would be valuable when calculating the IMA.

AMA = OF / IF, where OF - " Output Force, " and IF - " Input Force "

The input force should be 60 N, as you apply 60 newtons to move this crate up the inclined plane. Respectively 105 N is the output force,

AMA = 105 N / 60 N,

AMA = 1.75 - Option D

* The Actual Mechanical Advantage does not have units. Hope that helps! *

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