Question

A person hold a suitcase for 30 minutes and gets tired he has done some work or not justify your ans

Answer 1

No he has not done any work. According to the scientific definition of work...work is said to be done only when a force is applied and the object gets displaced but here in this case the object has not displaced ...no matter that whether a person holding the suitcase in his hand for 30 minutes.

Answer 2

Answer:

yes he did some work as the displacement of the lord is in direction for that is upward