State and define the S.I. unit of work.
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The S.I unit of work is Joule.
1 joule of work is said to be done when a force of 1 newton displaces a body through a distance of 1 metre in its own direction.
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The work done by a fielder when he takes a catch in a cricket match, is negative. Explain.
What are the S.I. and C.G.S. units of work? How are they related? Establish the relationship.
Express joule in terms of erg.
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