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Question
When a metal wire elongates by hanging a load on it, the gravitational potential energy is decreased.
Options
This energy completely appears as the increased kinetic energy of the block.
This energy completely appears as the increased elastic potential energy of the wire
This energy completely appears as heat.
None of these.
Solution
None of these is the correct option. The decreased gravitational potential energy transforms partly as elastic energy, partly as kinetic energy and also in the form of dissipated heat energy.
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