1.

A person brings a mass of 1kg from infinity to a point A. Inifially the mass was at rest but it moves at a speed of 2 m"/"s as it reaches A. The work done by the person on the mass is -3J. The potential at A is

Answer»

`-3 J"/"kg`
`-2 J"/"kg`
`-5 J"/"kg`
`-1 J"/"kg`

Answer :C


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