Question

# Define 1 joule of work.

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Solution

## Work is said to be done when the force applied to a body causes a displacement.The SI unit of force is joule.Work done = Force × Displacement.One joule of force is defined as the work done by 1 N of force on displacing a body by 1 m.$Workdone=1N×1m\phantom{\rule{0ex}{0ex}}=1Nm\phantom{\rule{0ex}{0ex}}=1joule.$

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