Notes on Resultant Force
Definition of Resultant Force
- Resultant Force: A single force that can produce the same effect as multiple forces.
- Force: The external energy required to move an object from one place to another.
- Force is a vector quantity that has both magnitude and direction.
- Force is measured in Newtons or kiloNewtons.
Calculation of Resultant Force
- To find the resultant force, we need to sum all the forces first.
- The resultant force is denoted by R.
Methods to Find Resultant Force
- Analytical Method
- Graphical Method
Analytical Method
- In the analytical method, a book is used to solve the problem.
- It includes two types:
- Trigonometric Method: Includes the law of parallelogram.
- Algebraic Method: Includes the method of resolution.
Graphical Method
- Involves the use of space diagrams, vector diagrams, etc.
- The resultant force is determined using the graphical method.
Limitations of the Law of Parallelogram
- The law of the parallelogram applies only to two concurrent forces.
- If the number of forces is more than two, this method cannot be used.
Method of Resolution
- The method of resolution applies to both concurrent and non-concurrent forces.
- It can also be used for collinear, parallel, and unlike parallel forces.
Conclusion
- Knowledge of analytical and graphical methods is essential for the calculation of resultant force.
- Choosing the correct method according to the situation of different forces is crucial.
- For more information and practice, visit the YouTube channel.
Hope the information provided in today's video was clear to you.