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Drag Strip

Push a cart down a smooth track. Set the push, then watch its kinetic energy grow.

Physics · Class 11 · Kinetic energy and the work–energy rule · 7 simulations. For JEE, NEET and your boards.

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What you'll learn

  1. Feel the speed: Kinetic energy: K = ½mv²
  2. Push to the gate: The push's work becomes KE
  3. Push for 4 seconds: Speed first, then F = ma
  4. Same push, two carts: Same push, same momentum. K = p²/2m
  5. Half as much again: KE goes as p²
  6. Twice as fast: The cost is the change in KE
  7. Same KE, same brakes: Brakes take away the KE: F × d = K