(i) Calculate the mecahnical advantage of the lever shown in figure. (ii) How do you define mechanical advantage of a machine?
(i) Clockwise moment = b x L; and Anti-clockwise moment = a x E
∴ Clockwise moment = Anti-clockwise moment
∴ b x L = a x E
Or L/E = a/b
(ii) Mechanical advantage is the ratio of the load lifted to the effort applied.
M.A = L/E = a/b