1. Physics
2. Laws of Motion

JEE & NEET Physics

Laws of Motion: notes and previous year questions

Free notes for every topic in laws of motion, with the key formulas and real JEE and NEET questions solved step by step.

• Newton's First Law – Law of InertiaWhy a moving body needs no force to keep moving, what inertia is, and where the first law holds.
• Newton's Second Law – Force and MomentumHow a force changes momentum, how to use F = ma with free body diagrams, and how to solve inclines, pulleys and impulse.
• Newton's Third Law – Action and ReactionWhy forces always come in equal and opposite pairs, why the pairs never cancel, and how the law leads to recoil and conservation of momentum.
• Friction – Static and KineticStatic and kinetic friction, the laws of friction, the angle of repose, and friction on slopes, ropes and brakes.
• Impulse and Conservation of MomentumImpulse and force–time graphs, why soft catches hurt less, conservation of momentum, collisions, restitution and explosions.
• Circular Motion Dynamics – Centripetal ForceThe centripetal force and what supplies it: strings, conical pendulums, flat and banked roads, vertical circles and the well of death.