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Static or kinetic?

Exercise and reference answers

Items
  1. Group
    Static
    Item
    Surfaces at rest
  2. Group
    Kinetic
    Item
    Surfaces sliding
  3. Group
    Static
    Item
    Matches the push
  4. Group
    Kinetic
    Item
    Puck on ice
  5. Group
    Static
    Item
    Usually greater
  6. Group
    Kinetic
    Item
    The smaller one
  7. Group
    Static
    Item
    Before it slips
  8. Group
    Kinetic
    Item
    After it slips
Groups
  1. Item
    Static
  2. Item
    Kinetic
Instructions
Steer each falling clue onto its own friction type. Alike ones merge and grow.

Explanation

_Source: OpenStax College Physics (CC BY 4.0), Ch 5 "Further Applications of Newton's Laws: Friction, Drag, and Elasticity", section Friction_
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