Mechanics, class 11

These pages follow the NCERT class 11 physics chapters. Each scenario runs live in the page, computed by the same engine researchers use. Open any of them in the playground to move sliders, draw the free-body diagram and plot graphs.

Every scenario comes with three layers. Intuition says what you are looking at in plain words. The maths gives the equations and the textbook answer. How the engine does it says what the computer actually solves and how we checked it.

Motion in a straight line and in a planeFree fall, a ball thrown upward, projectiles.

Laws of motionFriction on an incline, pushing a block, the Atwood machine, a block pulled by a hanging mass.

Work, energy and powerCollisions and the bob in a vertical circle.

RotationRolling down an incline and the seesaw.

OscillationsA mass on a spring and the simple pendulum.

Scenes as JSONExport any scenario, edit it, load it back, or run it in a notebook.

What makes these simulations trustworthy

• Forces, tensions and normal reactions you see are the numbers the engine used, not drawings added afterwards.
• The energy ledger shows where every joule went: kinetic, potential, dissipated by friction, or added by a push.
• Each scenario is tested against its closed-form answer on every change to the engine. See Validation.