Physics · Laws of Motion and Friction
Why is walking on loose sand more difficult than walking on a hard concrete surface?
- 1Sand offers a much higher frictional force compared to concrete.
- 2The force of gravity decreases slightly over sandy surfaces.
- 3Sand yields and deforms under the applied force, reducing the effective reactionary force.✓
- 4Sandy ground exerts a strong magnetic resistance on footwear.
Correct answer
Sand yields and deforms under the applied force, reducing the effective reactionary force.
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