Question

what is lever?State its principle

Answer 1

a rigid bar resting on a pivot, used to move a heavy or firmly fixed load with one end when pressure is applied to the other.

"a tyre lever"

Principle of the Lever. It has been found by experiment that two equal forces acting in opposite directions, i.e., clockwise and counterclockwise, and applied to a uniformlever at equal distances from the fulcrum counteract each other and establish a state of equilibrium, or balance, in the lever.

Answer 2

Principle of the Lever. It has been found by experiment that two equal forces acting in opposite directions, i.e., clockwise and counterclockwise, and applied to a uniform lever at equal distances from the fulcrum counteract each other and establish a state of equilibrium, or balance, in the lever.