Question

A lever is used to lift a 500 lb weight with a 75 lbf input force. a) Calculate the required mechanical advantage b) calculate the required length of L. The angle of the lever with respect to the horizontal is small enough to assume the forces are perpendicular to the lever.

Answer 1

For a lever, the mechanical advantage, M.A = Load / Effort

a)

M.A = 500/75 = 6.667

b)

To calculate the required length of L but I can not find the diagram that shows the positions or the lever (Pls edit this part of the question)