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A person brings a mass of 1 kg from infinity to a point A. Initially, the mass at rest but it moves at a speed of 3 m/s as it reaches A. The work done by the person on the mass is -5.5 J. The gravitational potential at A is 

(a) -1 J/kg

(b) -4.5 J/kg

(c) -5.5 J/kg 

(d) -10 J/kg

1 Answer

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Best answer

Correct option (d) -10 J/kg

Explanation :

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