Which one of the following cases is body more stable?

A boy standing on his one feet

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A boy standing on his both feet

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A boy standing on an incline

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A boy sleeping on the ground

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Solution

The correct option is D
A boy sleeping on the ground

The basic concept of stability is to keep the COM of an object closer to the ground. Closer to the ground, more stability it will achieve. So, among all 4 cases, for a boy sleeping on the ground will have COM closer to the ground, i.e. this condition is meant for more stability compared to others.

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