Physicshard · Past Paper
The reason why we can't walk easily on a sandy beach is:
ASand has no friction
BLarge area reduces pressure but increases reaction time
CReaction force of sand is less due to displacement
DGravity is higher on sand
✓ Correct Answer: C — Reaction force of sand is less due to displacement
When we step on sand, it gets displaced, and the reaction force provided is not sufficient or stable compared to a hard surface.
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