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Physics · LAWS OF MOTION

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Compared to static or sliding friction between hard surfaces, rolling friction is smaller by how many orders of magnitude?

  1. 10 to 12 orders of magnitude
  2. 5 to 6 orders of magnitude
  3. 2 to 3 orders of magnitude
  4. 0.1 to 0.5 orders of magnitude

Correct answer · Option 3

2 to 3 orders of magnitude

Explanation

Rolling friction is much smaller than static or sliding friction, typically by 2 or 3 orders of magnitude.

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