Inclined Plane
A flat surface set at an angle or incline
with no moving parts
Able to lift objects by pushing or pulling
the load
E
D DR
=
A
M
I
Inclined Plane IMA
DE = Distance traveled by the effort = L
L H
=
A
M
I
DR = Distance traveled by the resistance = H
What is the IMA of the inclined plane above?
IMA = 15.0 ft / 4.0 ft = 3.75 = 3.8:1
4.0 ft
F RF E
=
A
M
A
Inclined Plane AMA
4 ft
b
b l
l
.
.
0 0
5 2
=
A
M
A
What is the AMA of the inclined plane above?
AMA = 2.5 = 2.5:1
5
7
.
3
=
0
5
.
2
Efficiency =
AA
MM
AI
What is the efficiency of the inclined plane above?
= .67 or 67%

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