Question

Which simple machine is used by the laborers to load heavy barrels, etc., on a truck?

Answer 1

Simple machine:

A simple machine is a mechanical device that adjusts the direction or amplitude of a force.

Inclined plane:

1. An inclined plane is a simple machine used for lifting heavy barrels from the ground to trucks etc.
2. An inclined plane decreases the amount of effort required to load heavy barrels.
3. Typically, we observe laborers carrying big boxes or barrels up an inclined wooden board set on the ground to load on a truck.