LUDO › Simulations › Newton's Laws of Motion

Cut the String

Predict each block's acceleration the instant a string is cut. Springs can't change in zero time.

Physics · Class 11 · Spring vs string, the instant after · 7 simulations. For JEE, NEET and your boards.

A picture of the Cut the String simulation

Start Cut the String →

What you'll learn

  1. Spring above, string below: A spring can't change in zero time
  2. Cut the spring instead: A spring with a free end
  3. String above, spring below: A block can fall faster than g
  4. Unequal blocks: Spring force = weight of everything below
  5. Cut the pull: Springs in a moving system
  6. Held on a slope: Working along a slope
  7. Three in a row: A longer chain, block by block