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When is the Pressure on the Ground More—When a Man is Walking Or When a Man is Standing ? Explain. - CBSE Class 9 - Science

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Question

When is the pressure on the ground more—when a man is walking or when a man is standing ? Explain.

Solution

We know surface area is inversely proportional to pressure. Therefore when we stand, our body pressure is transferred equally on both the legs. Hence, the surface area increases and the pressure decrease. But when we walk, our body pressure is transferred to single leg at a time. Hence, the surface area decreases and the pressure increase. Thus, pressure is more while we walk.

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APPEARS IN

 Lakhmir Singh Solution for Science for Class 9 Part 1 Physics (2016 to Current)
Chapter 3: Gravitation
Short Answers | Q: 41 | Page no. 124

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Solution When is the Pressure on the Ground More—When a Man is Walking Or When a Man is Standing ? Explain. Concept: Mass and Weight.
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