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Two women are of the same weight. One wears sandals with pointed heels while the other wears sandals with flat soles. Which one would feel more comfortable while walking on a sandy beach? Give reasons for your answer.
For walking over a sandy surface, we may need the footwear for a larger area to make the pressure exerted on the ground minimum. If the woman having the sandals with pointed heels will be less comfortable walking while the other woman wearing sandals with flat soles feels more comfortable while walking on a sandy beach.
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- We have two identical metal sheets. One of them is rubbed with sand paper and the other with ordinary paper. The one rubbed with sand paper shines more than the other. Give reason.
- Which friction is used while walking?
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- Is the uniform circular motion accelerated ? Give reasons for your answer.
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