Introduction
These principles explain inertia, acceleration, and action-reaction forces. This chapter explores these concepts in-depth, including friction and its real-world applications. Essential for JEE, NEET, and CBSE aspirants, it simplifies physics with clarity.
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Important Points
- Newton's First Law: Defines inertia and resistance to motion.
- Newton's Second Law: Relates force, mass, and acceleration (F = ma).
- Newton's Third Law: Explains action-reaction force pairs.
- Friction: The resistive force opposing motion.
- Free-Body Diagrams: Essential for force analysis in problems.
Important Formulas
F = ma – Newton’s Second Law
P = F · v – Power in terms of force & velocity
f = μN – Frictional Force
W = mg – Weight of an object
a = (v_f - v_i) / t – Acceleration formula
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