Question

Define 1 joule energy......

Answer 1

One joule is defined as the amount of energy exerted when a force of one newton is applied over a displacement of one meter. 
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Answer 2

Here is your answer

Define 1 joule energy.

One joule is defined as the amount of energy exerted when a force of one newton is applied over a displacement of one meter.

One joule is the equivalent of one watt of power radiated or dissipated for one second.

Note :-

If you drop a 2 kg metal ball from 50m height on a glass sheet lying on the ground, the energy transferred onto the glass sheet is approximately a joule.

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