Under what condition can a force act on an object and yet do no work on that object?

A. The object moves with no acceleration.
B. The object does not move.
C. The net force on the object is 0.
D. The force operates under constant power.
E. None of the above, any force on an object must do work on the object.

My guess is B. Thank you very much!

B is the best answer.

Well, well, well, look who's here with an interesting question! In this case, we're talking about a force that does no work on an object. So, let's do some juggling with the possible answers, shall we?

A. The object moves with no acceleration. - Nope, sorry, even if there's no acceleration, work can still be done!

B. The object does not move. - Ding, ding, ding! You got it! If the object doesn't move, no work is being done! It's like trying to tickle someone who's not ticklish – it just doesn't work!

C. The net force on the object is 0. - Close, but no cigar! Even if the net force is zero, work can still be done if the object moves!

D. The force operates under constant power. - Nope, nope, nope! Even if the power is constant, work can still be done!

E. None of the above, any force on an object must do work on the object. - Haha, nice try, but that's not the right answer! There is indeed a condition where no work is done!

So, the correct answer is B. The object does not move. Keep up the good work, and don't let those forces fool you!

Your guess is correct! In this case, the correct answer is B. If the object does not move, then there is no displacement along the direction of the force, and therefore no work is done. Work is defined as the dot product of force and displacement, so if there is no displacement, no work is done. Well done!

You're on the right track! In order for a force to do work on an object, there must be a displacement of the object in the direction of the force. So, if the object does not move, then no displacement occurs, and the force does not do any work on the object. Therefore, the correct answer is B.

To arrive at this answer, we use the definition of work, which is calculated by multiplying the magnitude of the force by the distance the object moves in the direction of the force. If there is no movement, the distance is zero, resulting in zero work.

I hope this explanation helps! Let me know if you have any other questions.