When a metal wire elongates by hanging a load on it, the gravitational potential energy is decreased

This energy completely appears as the increased KE of the block

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This energy completely appears as the increases elastic potential of the wire

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This energy completely appears as heat

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None of these

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Solution

The correct option is D None of these

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Similar questions

Q. When a metal wire elongates by hanging a load

M g

on it, the gravitational potential energy of mass

M

decreases by

M g l

. This energy appears.

Q. When a metal wire elongates by hanging a load on it, the gravitational potential energy is decreased.
(a) This energy completely appears as the increased kinetic energy of the block.
(b) This energy completely appears as the increased elastic potential energy of the wire
(c) This energy completely appears as heat.
(d) None of these.

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