Lesson: Free-Body Diagrams High School Physics

Physics

In this lesson, we will learn how to analyze free-body diagrams and use them to determine the net force and unknown forces acting on objects.

Video

11:47

Sample Question Videos

05:12
04:16
06:07

Worksheet: 15 Questions • 3 Videos

Q1:

A man pushes a box in the direction of the arrow shown in the diagram. Which of the following is a correct free-body diagram showing the horizontal forces acting on the box?

Q2:

A box is pulled along a surface by an applied force of 32 N, as shown in the diagram, which is not to scale. The net horizontal force on the box, acting to the right, is 24 N. What is the magnitude of the force ?

Q3:

A man pushes a box, as shown in the diagram. The box does not move. Which of the following is a correct free-body diagram showing the horizontal forces acting on the box?

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