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Pulley Puzzle

Block A moves at 2 m/s. How fast does B move? Predict it, then pull the string and see.

Physics · Class 11 · String and wedge constraints · 7 simulations. For JEE, NEET and your boards.

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What you'll learn

  1. One fixed pulley: A string can't stretch
  2. Movable pulley: Count the pieces of string
  3. Two movable pulleys: One string at a time
  4. Boat to the bank: Only the part along the rope
  5. Rod on a wedge: Surfaces that must stay touching
  6. Three blocks, one string: Several moving points on one string
  7. Pulley on a crane: Measure from the moving pulley