Question

When a lever rests on a fulcrum, a heavy object on one end of the lever can be lifted with less _____.

A. work
B. force
C. energy
D. resistance

Answer 1

A

Step-by-step explanation:

Work is a product of force and distance. In other terms, when the force applied on point result to movement, then work done is the force applied multiplied by the distance/displacement of the movement. Work is measured in Joules. In this case, work can be derived as W = Fs cos θ; where θ is the angle of displacement at the fulcrum.