Question

1. which forces can be represented in a free-body diagram?

Explanation:

A free - body diagram is used in physics (a subfield of Natural Science) to represent the forces acting on an object. The forces that can be represented include contact forces (like normal force, friction force, tension force, applied force) and non - contact forces (like gravitational force, electrostatic force, magnetic force). These forces are shown as vectors acting on the object, with their direction and magnitude (if known) indicated. For example, when analyzing a book on a table, the free - body diagram would show the gravitational force (weight) acting downwards and the normal force from the table acting upwards.

Answer:

The forces that can be represented in a free - body diagram include contact forces (e.g., normal force, friction force, tension force, applied force) and non - contact forces (e.g., gravitational force, electrostatic force, magnetic force). These forces are external forces acting on the object of interest, and they are represented as vectors to show their direction and (if determinable) magnitude.