Question

question 9
9/10
what is the purpose of a free body diagram?
to calculate the speed of an object.
to measure the mass of an object.
to determine the gravitational force on an object.
to represent all forces acting on an object.

Explanation:

A free - body diagram is a visual tool in physics that shows all the external forces acting on an object. It is not used for calculating speed, measuring mass, or specifically determining gravitational force only. Its main purpose is to represent all forces acting on an object for analysis.

Answer:

To represent all forces acting on an object.