a person having a load on his head is walking with uniform velocity on a horizontal road does he do any work?can you please explain it breifly.
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6
Answer:
no he doesn't because the load is on his head and the force acting on the load is downwards that is mg. and the displacement is in horizontal direction. this means the angle between force and displacement is 90 so acc to work
Worl2= force × disp × cos theta
so cos 90 =0 so worl done =.0
Answered by
3
Answer:
No, when person having a load on his head is walking with uniform velocity on a horizontal road work is not done.
This is because work is not done when the force applied is perpendicular to the direction of displacement. when it is so it becomes 0 work done or no work.
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