Physics · Friction and Mechanics
Why is it noticeably difficult to walk safely on a wet marble floor compared to a dry one?
- 1Because the reaction force of the surface increases due to water surface tension.
- 2Because water alters the chemical composition and macroscopic texture of the marble.
- 3Because the thin layer of water acts as a lubricant, reducing friction significantly.✓
- 4Because the presence of water increases static friction dramatically.
Correct answer
Because the thin layer of water acts as a lubricant, reducing friction significantly.
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