What is it’s M.A.?

Question

A lever has a distance from the fulcrum to the input force of 12 meters and a distance of the fulcrum to the output force of 2 meters.

Answer 1

Hi Janiya T.,

The M.A. (Mechanical Advantage) is the input force length (12 meters) divided by the output force length (2 meters).

M.A. = 12/2 = 6

Archimedes (287 BC – 212 BC) is quoted as having once said, “Give me a big enough lever, and a place to put the fulcrum, and I will move the world.”

I hope this helps, Joe.

Answer 2

For the equilibrium, the torque about the fulcrum due to input force(F_in) equals the torque due to output force(F_out).

ie F_in x L_input = F_out x L_output

MA = F_out / F_in = L_input / L_output =12/2 = 6