Simple Machines & Mechanical Advantage

MA = \frac{Load}{Effort} = \frac{100}{25} = 4.00

Mechanical Advantage4.00

Velocity Ratio4.00

Efficiency100.0%

Load (N)100

Effort (N)25

Effort distance (m)8

Load distance (m)2

Set load = 100 N and effort = 25 N — confirm the Mechanical Advantage reads 4
Set effort distance = 8 m and load distance = 2 m — confirm the Velocity Ratio reads 4
With MA = 4 and VR = 4 (load=100, effort=25, effortDistance=8, loadDistance=2), confirm efficiency reads exactly 100%
Keep effortDistance=8, loadDistance=2, load=100, but raise effort to 40 N — confirm efficiency drops to 62.5% (friction)
Keeping load = 250 N, find the effort that gives a Mechanical Advantage of exactly 5