Calculate the mechanical advantage for the follow problem?

1 ⤊

A person uses a crow bar to move a rock that weighs 200 N. The effort arm is 50 cm long. The resistance arm is 20cm long

2007-11-14 14:28:38 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Engineering

200 X 20/50 = 8

2007-11-14 14:37:37 · answer #1 · answered by Tim C 7 · 0⤊ 0⤋

How do we Calculate Mechanical Advantage of a Lever:

For the Lever:

MA = length of effort arm Ã· length of resistance arm.
MA = .5m/.2m = 2.5

2007-11-14 22:36:23 · answer #2 · answered by phrozenwarrior 3 · 1⤊ 0⤋