Question

Work + Dot Product concept question: What is the work done by tension?

Answer 1

What would be the work done by tension on the girl as she swings from A to B?

Answer 2

From what I understand the tension is the magnitude of the pulling force on the rope, and the girl adds to the pull

Answer 3

The rope is fixed, and the rope exerts a tension of T on the girl

Answer 4

well tension is orthogonal, or perpendicular, to the direction that the girl is swinging

Answer 5

so there is no force from tension associated with the distance that the girl swings, therefore tensions does no work on the girl

Answer 6

oh, the tension is perpendicular to the motion here

Answer 7

so W = 0 here

Answer 8

cool, thanks