Mechanical energy, which may originally come from just about any other type of energy. For example, if you push with your muscles, you are converting chemical energy in your body into mechanical energy.
first of all what type of lever, if it's the kind that you tern things like lights on with then it mechanical energy
Never heard of a "lever lawn mower"
For a cobra chill is what type lever
A lever.
It relied on a torsion (twisting) to provide the energy for the throw, as opposed to a counterweight.
Someone pushing against a lever.
The lever.
lock and key is the lever of second type
no
this type of energy is used when the body is put under stress
Electrical energy
light energy