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Question

Answer the following :

A. If you are on a sandy beach then in which case will you make a deeper impression on the sand

a) while you are standing straight; or

b) while you are lying down

B. If you are on a sandy beach then in which case will you make a deeper impression on the sand

a) while you are standing straight; or

b) while you are walking               [5 MARKS]


Solution

Part A : 2.5 Marks
Part B : 2.5 Marks

A. You will make a deeper impression while standing straight as compared to lying down as when you are standing the area of contact is lesser compared to lying down. On the same time the force applied by you is same. So pressure in the case of standing is more than lying down.

B. You will make a deeper impression while walking as compared standing straight as when you are standing the area of contact is more as you have two feet's area compared to walking when only one feet is on the ground at a time.

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