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6. Work, Energy and Power
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Q3 of 48 Page 38

A man squatting on the ground gets straight up and stand. The force of reaction of ground on the man during the process is

According to the question more force is required by the man

during the process of standing than when he stands up i.e.;


during standing up, normal force = friction + mg ⇒ N>mg


while standing N=mg


option (d) is correct.

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Questions · 48
6. Work, Energy and Power
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