Force and Pressure- Blog 2

CLASS 8 CHAPTER 11
Force and Pressure
Day 2

"Always Question, Always Wonder" 

Dear Learners,
Thank you for logging in! You're wonderful!😊 

Happy Learning!😊

This is our second class for this chapter. At the end of it, you will be able to:
1. Estimate various units of forces.
2. Define the Resultant force.
3. Explain the different cases of the Resultant force.

Units of Force:

  • SI (International System of Units) unit is the newton (N).
  • other units are kgf (kilogram force) gf ( gram force).
  • 1kgf=1000gf
  • 1kgf=9.8N
https://youtu.be/OKC_g3obGTo (( Check this video on SI units) (Optional)

Resultant Force:

The single force which acts on a body to produce the same effect in it as done by all the forces collectively is called the resultant force.



Case 1: When two forces act along the same line in the same direction.



Case 2: When two forces act along the same line but in the opposite direction.



Case 3: When two equal forces act along the same line but in the opposite direction.




In case 3 resultant force will be 0.



Assignment:

  • Read from pg. 174-177 of the textbook
  • Solve eg. 1 and 2 on Pg.177 in your notebook.

See you for the next class😊

Stay Happy! Stay Fantastic!

Comments

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