Answers

2015-12-02T22:49:22+05:30
If we are pushing a table but it is not moving, then no work is done because a work is said to be done if something moves a distance when force applied.
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2015-12-03T05:17:42+05:30
Yes your doing work because you are keeping a certain energy on the table to move . This energy is called muscular energy which is used by your body. the work you keep on the table is equal to the work you keep on the muscular energy so work is done here

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