A person holds a bundle of hay over his head for 30 minutes and gets tired.Helpline/M has done work or not? Justify..
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NO WORK DONE IS 0 BECAUSE THE LOAD OF BUNDLE IS ACT PERPENDICULAR 90 DEGREES BECAUSE THE line of action match with the centre of gravity because he walks horizontal surface.
This is perfect reason
This is perfect reason
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work is defined as distance × mass
but if the person does not cover any distance then the work = 0 × mass =0
but if the person does not cover any distance then the work = 0 × mass =0
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