Question

What is the value of VR of the third-class lever and why?

a) VR=1, because the force is applied in the middle of the lever.
b) VR>1, because the force arm is longer than the resistance arm.
c) VR<1, because the resistance arm is longer than the force arm.
d) VR=0, because it's a third-class lever.

Answer 1

In a third-class lever, VR < 1 because the resistance arm is longer than the force arm.

Step-by-step explanation:

In a third-class lever, the value of VR is always less than 1. This is because the resistance arm is longer than the force arm. The force is applied closer to the fulcrum, while the load or resistance is farther away from the fulcrum. As a result, the mechanical advantage of a third-class lever is less than 1.