CET Physics: Laws of Motion – Important Formulas & Concepts BY sarthak patil

 

📌 Posted by: Sarthak Prakash Patil  

📅 Updated: July 2025


🚀 **Laws of Motion – CET Physics Formula Sheet**


📘 **Newton's Laws:**

1️⃣ First Law (Inertia) – A body remains in its state of rest or uniform motion unless acted upon by an external force.  

2️⃣ Second Law – F = ma  

3️⃣ Third Law – For every action, there is an equal and opposite reaction.


📐 **Important Formulas:**

– Net Force: F = ma  

– Friction Force: f = μN  

– Tension, Normal Force concepts  

– Inclined plane:  

  a = g(sinθ – μcosθ)


🧲 **Friction Types:**

- Static Friction (fₛ ≤ μₛN)  

- Kinetic Friction (fₖ = μₖN)


💡 **Tips:**

- Always draw free body diagrams (FBD).  

- Use proper sign conventions.  

- Understand components along slope in inclined plane questions.


🎯 Practice MCQs on Laws of Motion for faster recall in CET exam.


📚 Blog: Sarthak’s Education Corner



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