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Hectal
Phase 9: Springs and Physics
Web Animation · Exercise 1 of 4Next
Beginner

Tame the bounce

Go sends the ball 160 px with a spring (stiffness 170, mass 1) and it bounces far too much.

Change only the damping so the ball overshoots by at most 3% (4.8 px) and is within 2 px of 160 after one second.

What Check tests

  1. It moves, and the overshoot is at most 3%
  2. After about one second it is within 2 px of 160
  3. It ends exactly on 160

Stuck? One hint at a time

The solution unlocks after your first Check. Try first: that is where the learning happens.

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