How many work is done in ergs in pulling a box 2 m across a table top with a force of 20 N in horizontal direction
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work =force × displacement
=20×2
=40 joules
=40×10^7 erg
as 1 joule =10^7 ergs
=20×2
=40 joules
=40×10^7 erg
as 1 joule =10^7 ergs
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