Explain me this concept (Laws of Motion)

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SUMMARY

The discussion focuses on the application of Newton's second law (F = ma) to analyze the motion of two blocks placed on a smooth horizontal surface, with a coefficient of friction (\mu) between them. The first case involves applying a horizontal force (F) to the lower block. Participants emphasize the necessity of applying Newton's second law separately to each block to derive the relevant equations governing their motion. This structured approach is essential for understanding the dynamics of the system.

PREREQUISITES
  • Understanding of Newton's second law of motion (F = ma)
  • Basic knowledge of friction and its coefficient
  • Familiarity with free body diagrams
  • Concept of horizontal motion on a smooth surface
NEXT STEPS
  • Study the derivation of equations of motion for multiple bodies under external forces
  • Learn about the effects of friction in multi-body systems
  • Explore free body diagram techniques for complex systems
  • Investigate real-world applications of Newton's laws in engineering
USEFUL FOR

Students of physics, educators teaching mechanics, and anyone interested in understanding the fundamental principles of motion and forces in multi-body systems.

snshusat161
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Two blocks placed one on top of the other are lying on a horizontal smooth surface. The coefficient of friction between the blocks is [tex]\mu[/tex].

Case 1: Horizontal force F is applied to the lower block (Fig. 14).

[PLAIN]http://www.monbattle.com/1.jpg[/CENTER]

Please help me to find out how they have got those equations. I'm trying to find it from past several hours but couldn't got any hint.​
 
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Hi snshusat161! :smile:

(your link isn't working … it's http://www.monbattle.com/1.jpg" :wink:)

You need to do good ol' Newton's second law (F = ma) twice, once for each block.

What equations do you get? :smile:​
 
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