In which case does the potential energy decrease
In which case does the potential energy decrease
On compressing a spring
On stretching a spring
On moving a body against gravitational force
On the rising of an air bubble in water
In which case does the potential energy decrease
In compression or extension of a spring work is done against restoring force.
In moving a body against gravity work is done against gravitational force of attraction.
It means in all three cases potential energy of the system increases.
But when the bubble rises in the direction of upthrust force then system works so the potential energy of the system decreases.
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