Choose the correct expression for Mechanical Advantage(M.A).
M.A = Inclined length/Vertical height
M.A = Effort/Load
M.A = Vertical height/Inclined length
M.A = 1
Mechanical advantage of a lever = loadeffort = effort armload arm
Choose the correct expression for mechanical advantage.
State the kind of lever which always has the Mechanical Advantage(M.A) less than 1.
Calculate the Mechanical Advantage(M.A) for a load of 40 N, when the required force to lift the load is 15 N.