Menu
Physics Lesson 6.4.2 - What happens if the acting force is not normal to the bar?
Please provide a rating, it takes seconds and helps us to keep this resource free for all to use
Welcome to our Physics lesson on What happens if the acting force is not normal to the bar?, this is the second lesson of our suite of physics lessons covering the topic of Moment of Force. Conditions of Equilibrium, you can find links to the other lessons within this tutorial and access additional physics learning resources below this lesson.
What happens if the acting force is not normal to the bar?
In this case, we consider only the force component that lies normal to the bar as only it contributes in the rotation of the system. The other component, i.e. the component of force according the direction of the bar, goes in vain, as it gives no contribution in the rotation. Look at the example below:
Example 2
How far from the bar is the application point of the force F in the system shown in the figure below? Take g = 10 N/kg, cos 530 = 0.6 and sin 530 = 0.8.
Solution 2
Let's use a scalar approach to solve this problem. We have the following clues:
Δx1 = d1 = 1.2 m
F2 = 60 N
d2 = ?
Let's find some missing quantities first. Thus,
= 5 kg × 10 N/kg
= 50 N
F2x = F2 × cos 530
= 60 N × 0.6
= 36 N
F2y = F2⊥ = F2 × sin 530
= 60 N × 0.8
= 48 N
Thus, we have
After substitution, we obtain
48 = 48 × d2
d2 = 48/48 = 1m
You have reached the end of Physics lesson 6.4.2 What happens if the acting force is not normal to the bar?. There are 7 lessons in this physics tutorial covering Moment of Force. Conditions of Equilibrium, you can access all the lessons from this tutorial below.
More Moment of Force. Conditions of Equilibrium Lessons and Learning Resources
Whats next?
Enjoy the "What happens if the acting force is not normal to the bar?" physics lesson? People who liked the "Moment of Force. Conditions of Equilibrium lesson found the following resources useful:
- Not Normal Feedback. Helps other - Leave a rating for this not normal (see below)
- Centre of Mass and Linear Momentum Physics tutorial: Moment of Force. Conditions of Equilibrium. Read the Moment of Force. Conditions of Equilibrium physics tutorial and build your physics knowledge of Centre of Mass and Linear Momentum
- Centre of Mass and Linear Momentum Revision Notes: Moment of Force. Conditions of Equilibrium. Print the notes so you can revise the key points covered in the physics tutorial for Moment of Force. Conditions of Equilibrium
- Centre of Mass and Linear Momentum Practice Questions: Moment of Force. Conditions of Equilibrium. Test and improve your knowledge of Moment of Force. Conditions of Equilibrium with example questins and answers
- Check your calculations for Centre of Mass and Linear Momentum questions with our excellent Centre of Mass and Linear Momentum calculators which contain full equations and calculations clearly displayed line by line. See the Centre of Mass and Linear Momentum Calculators by iCalculator™ below.
- Continuing learning centre of mass and linear momentum - read our next physics tutorial: Linear Momentum
Help others Learning Physics just like you
Please provide a rating, it takes seconds and helps us to keep this resource free for all to use
We hope you found this Physics lesson "Moment of Force. Conditions of Equilibrium" useful. If you did it would be great if you could spare the time to rate this physics lesson (simply click on the number of stars that match your assessment of this physics learning aide) and/or share on social media, this helps us identify popular tutorials and calculators and expand our free learning resources to support our users around the world have free access to expand their knowledge of physics and other disciplines.