Physics cover 5053
Rolling Motion: Translation and Rotation in One Body
Rolling motion decoded: translation plus rotation in one body, the v = omega R rule and JEE/NEET worked examples in exam-ready notes.
Engineering entrance prep – JEE Main and Advanced physics series, chapter notes, solved examples and revision cards.
Physics cover 5052
Angular Momentum in Rotation: Conservation Unleashed
Angular momentum conservation unleashed: the spinning-skater effect, L = I omega and JEE/NEET worked examples in exam-ready notes.
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JEE Main and Advanced: The Two-Step Door to the IITs
India's engineering entrance is really two examinations wearing one name.
Physics cover 5051
Torque Equals I-Alpha: Newton’s Second Law, Spun
Torque equals I alpha: Newton's second law spun for rotation with solved JEE/NEET examples and the rotational dynamics toolkit.
Physics cover 5050
Moment of Inertia: Why Distribution Beats Size
Moment of Inertia: Why Mass Distribution Beats Size Quick answer: In one line: Moment of Inertia — exam-ready notes in one glance. In one line…
Physics cover 5049
Torque: Why Doorknobs Live Far From Hinges
Torque Explained: Why Doorknobs Live Far From Hinges Quick answer: In one line: JEE/NEET Physics · Rotational Motion series · Part 2 of 8 · All parts…
Physics cover 5048
Centre of Mass: The Point That Behaves Like a Particle
Centre of Mass Explained: The Point That Behaves Like a Particle Quick answer: In one line: Centre of Mass — exam-ready notes in one glance. In one…
Physics cover 5030
Gravitation Bonus: Shell Theorem to GEO Satellites
The side streets of Gravitation: field intensity E = GM/r², the shell theorem, potential inside a planet, true weightlessness, and the geostationary conditions — Part 9 (bonus) of the JEE/NEET Physics Gravitation series.
Physics cover 4689
Variation of g: Why You Weigh Less at the Equator
How g changes with height, depth and latitude — three formulas, one 15-second free-mark numerical, and how gold traders and mineral surveys quietly use them.
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Satellite Energy: Why Total Energy Is Negative KE Over Two
The −2 : +1 : −1 ratio (PE : KE : E) that solves every satellite-energy question, the halve-the-radius pattern, and why a satellite that loses energy speeds up — plus LIGO's binary inspirals.
Physics cover 4687
Gravitational Potential Energy: Why the Minus Sign Matters
U = −GMm/r explained: zero at infinity, negative means bound, mgh is its near-surface shadow — with a 3 GJ worked numerical and the sign traps that cost more marks than any calculation.
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Angular Momentum: Gravity Can Pull, It Cannot Twist
Why central forces conserve angular momentum (τ = 0), the L = mvr shortcut for elliptical-orbit speed problems, and how pulsars, satellites and ice skaters all obey the same rule.