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

Open in App

Solution

When a person is standing in a place holding a suitcase, then no work will be done because, work done = force × displacement. So, here force acts perpendicular and no displacement because person doesn't move, So work done will be 0.

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.

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.

Work done by a person on a book held in his hand while walking with uniform speed on a horizontal road. Here the work done is Negative, positive or zero?

Q. Sound is produced when a body undergoes to-and-fro movement. However, no sound is produced when a person waves his/her hand. Why?

Q. Assertion :A weight lifter does no work in holding the weight up. Reason: Work done is zero because distance moved is zero.

Join BYJU'S Learning Program