1
\mathrm{MA}=\frac{\mathrm{L}}{\mathrm{E}}
2
\mathrm{VR}=\frac{\mathrm{v_E}}{\mathrm{v_L}}
3
\mathrm{VR}=\frac{\mathrm{d_E}}{\mathrm{d_L}}
4
Work input = Work output
5
Work input > Work output
6
\mathrm{\eta}=\frac{\mathrm{MA}}{\mathrm{VR}}
7
MA = VR × η
8
Statement: For a balanced lever, moment of load equals moment of effort.
L × load arm = E × effort arm
9
\mathrm{MA}=\frac{\text{effort arm}}{\text{load arm}}
10
Ideal MA = VR = 2
11
VR = n
12
Ideal MA = VR = η = 1
13
\mathrm{MA}=\mathrm{VR}=2^{\mathrm{n}}
14
Ideal MA = n
15
\mathrm{MA}=\mathrm{n}-\frac{\mathrm{w}}{\mathrm{E}}
16
\mathrm{\eta}=1-\frac{\mathrm{w}}{\mathrm{n}\times\mathrm{E}}