IIT/NIT/BITS engineering entrance ecosystem.
BITSAT, VITEEE and the state CETs explained: the two-session BITSAT with English and logic sections, VIT’s 1984-to-NIRF-top-fifteen rise, and the MHT-CET, KCET, WBJEE and EAPCET map — one PCM trunk, many gates.
JEE Main explained — the current pattern (75 questions, all compulsory), the January and April sessions, percentile normalisation across shifts.
Elastic, inelastic and perfectly inelastic collisions sorted in one glance - what survives, what dies, and how to solve every JEE/NEET collision question fast.
Power and efficiency decoded for JEE/NEET physics: definitions, units, the formulas that matter, and worked examples showing how fast work really gets done.
The law of conservation of energy explained as perfect bookkeeping: worked JEE/NEET examples, common traps, and a revision card you can recall in the exam hall.
Potential energy explained as stored work: gravitational and spring energy, the reference-level choice and JEE/NEET worked examples in exam-ready notes.
Kinetic Energy and the Work-Energy Theorem explained: moving energy, simply, v² law and road safety, and solved examples.
Work done explained: when a force actually achieves something - positive, negative and zero work with JEE/NEET worked examples and quick revision points.
Equilibrium and toppling explained: centre of gravity, the stability triangle and why cranes do not fall - JEE/NEET notes with worked examples.
Rotational energy and flywheels explained: spin as a storage battery, moment of inertia at work and JEE/NEET examples in exam-ready notes.
Rolling motion decoded: translation plus rotation in one body, the v = omega R rule and JEE/NEET worked examples in exam-ready notes.
Angular momentum conservation unleashed: the spinning-skater effect, L = I omega and JEE/NEET worked examples in exam-ready notes.
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