How to Calculate Work Done While Posing

Which describes the work Shani did while she posed?

A. She did more work with her right hand than with her left because the right was held up higher.

B. She did no work while she posed because she did not move the torch or the book.

C. She did work while she posed because she was tired at the end of the session.

D. She did no work while she posed because she did not exert a force on anything.

Answer:

She did no work while she posed because she did not move the torch or the book.

When analyzing the work done while posing as described in the scenario, we can determine that Shani actually did no work. Although she mentioned that it was a lot of work to pose and her arms were tired, this was due to holding the pose for an extended period of time rather than exerting a force to move the torch or the book.

In physics, work is defined as the product of the magnitude of the force applied and the distance over which the force is applied. Since Shani did not move the torch or the book while posing, she did not perform any work in the physics sense of the term.

Therefore, the correct answer is that Shani did no work while she posed because she did not exert a force on anything. Despite feeling tired, the act of posing itself did not involve any actual work in the context of physics.