when we push the wall the walll does not move and no work is done
Answers
Answered by
49
the wall is always fixed, and it's too heavy so your work is never going to be done....
Riyasubh:
nothing??
its because according to formula w'=fs , s is equal to 0.therefore the total work becomes 0. ur answer is not totally justified
someone said sth abt my name when i was typing....
Oohk thanks
who??
that's wt I'm asking...
I don't know
Nd I didn't right
i know...okk
hmm
Answered by
28
Doing work is a path function and is always done if the body travels some distance. Expanding energy is different term. You should not get confused between work ad energy. Work and heat both are forms of energy. If there is no work in a process but still there is energy expanding, then obviously there must be heat output. This is in fact an in depth topic of thermodynamics. While pushing the wall there is no work done as displacement is zero, but there will be heat output. And tiredness comes because of the internal stress created causing the muscles to react to the action of pushing and fatigue.
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