Asked by Help
Tarzan, who weighs 917 N, swings from a vine through the jungle. How much work is done by the tension in the vine as he drops through a vertical distance of 3.85 m?
Simply calculating;
W=(917N)*(3.85m)= 3530.45 J
Isn't working, I'm not sure how to apply the work equation.
Simply calculating;
W=(917N)*(3.85m)= 3530.45 J
Isn't working, I'm not sure how to apply the work equation.
Answers
Answered by
Damon
Zero
The tension in the vine is perpendicular to the motion at every point of the path so the vine does NO work. The kinetic energy at the bottom is equal to m g times the drop distance.
The tension in the vine is perpendicular to the motion at every point of the path so the vine does NO work. The kinetic energy at the bottom is equal to m g times the drop distance.
Answered by
Damon
To emphasize because this is vital:
Work done = force component IN THE DIRECTION OF MOTION times the distance moved.
Work done = force component IN THE DIRECTION OF MOTION times the distance moved.
Answered by
Siddhi
Zero
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