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.

Open in App

Solution

For work to be done, the conditions necessary are, force applied and displacement caused by it.
Since the person is standing with the bundle of hay on his head, displacement is not caused in any direction.
Hence, the work done by the person is zero.

Suggest Corrections

Similar questions

Q. 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.

A person holds a bundle of hay over his head for $30 m i n u t e s$ and gets tired. Has he done some work or not? Justify your solution.

Q. Question 13
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.

Nitin studies in grade IX. He extends help to his father in managing the shop. One day, Nitin holds a bundle of objects of mass $30 k g$ over his head and walked $30 m$ on a horizontal surface.

(i) How much work is done by Nitin? Justify your answer.

(ii) What values are shown by Nitin?

Q. Why no work is done when a person is holding a brief case in his hand ? Justify answer with proper reason

Join BYJU'S Learning Program

A person holds a bundle of hay over his head for 30minutes and gets tired. Has he done some work or not? Justify your answer.

For work to be done, the conditions necessary are, force applied and displacement caused by it.Since the person is standing with the bundle of hay on his head, displacement is not caused in any direction.Hence, the work done by the person is zero.

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.

For work to be done, the conditions necessary are, force applied and displacement caused by it.
Since the person is standing with the bundle of hay on his head, displacement is not caused in any direction.
Hence, the work done by the person is zero.