Answer:
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
[tex]IMA=\frac{S}{H}[/tex]
where
S is the length of the ramp
H is the height
Substituting the data of this ramp, we find
[tex]IMA=\frac{16}{3}=5.33[/tex]
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
[tex]AMA=\frac{Load}{Effort}[/tex]
where in this case,
L = 100 lb is the load
E = 35 lb is the effort
So for this ramp, the AMA is
[tex]AMA=\frac{100}{35}=2.86[/tex]
