Physics · Laws of Motion and Friction

Why is it more difficult to walk on loose dry sand than on a solid concrete pavement?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Sand particles are magnetic, creating an opposing force against the feet.
2The sand yields and gets displaced under pressure, drastically reducing the reaction/pushback force.✓
3Sand is less dense than concrete, causing a localized reduction in gravitational pull.
4Loose sand has a much higher coefficient of static friction than concrete.

Correct answer

The sand yields and gets displaced under pressure, drastically reducing the reaction/pushback force.

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