A person holds a bundle of hay over his head for 30 minutes and gets tired. Has he done some work or not? Justify your answer.
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no he haven't did any work as work means when you move your body from one place to another for example if you just push a wall but is wall moving so you can't say that work is done so when you are doing that u r applying force to wall but the wall should move so that you can tell that work has been done...
example is if you take a jug from kitchen to your dining table so you can say work is done..
example is if you take a jug from kitchen to your dining table so you can say work is done..
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The person applies a force on the bundle of hay in the upward direction but there is no displacement of the load.
We know, W = F × s.
Since, s = 0, W = 0.
So, work done by the person on the bundle of hay is zero.
_________
Thanks...✊
The person applies a force on the bundle of hay in the upward direction but there is no displacement of the load.
We know, W = F × s.
Since, s = 0, W = 0.
So, work done by the person on the bundle of hay is zero.
_________
Thanks...✊
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