H=3 ft and s=16 ft. a 100lb box requires a 35 lb effort force to push the box up the inclined plans. how do i calculate the ima?

5.33

Explanation:

I assume the following:

H = 3 ft is the height of the ramp

S = 16 ft is the length of the ramp

For an inclined plane, the IMA (Ideal Mechanical Advantage) is given by

where

S is the length of the ramp

H is the height

Substituting the data of this ramp, we find

The IMA corresponds to the maximum mechanical advantage that can be achieved on the ramp. In reality, there are always frictional forces acting on the object loaded, therefore the Actual Mechanical Advantage (AMA) is given by

where in this case,

L = 100 lb is the load

E = 35 lb is the effort

So for this ramp, the AMA is

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