Momentum and Energy Physics

Question

A lever is used to lift a heavy load. When a 500 N force pushes one end of the lever down 1.2 m, the load rises .6 m. What is the approximate mass of the load (not weight)?

Answer 1

The work done by the force applied =(500 N)*(1.2 m), the same work will be done on the load.

Then, (500 N)*(1.2 m)= m*g*(6 m).

Finally, m=(500 N*1.2 m)/(6 m*10 m/s²)=10 kg