Physics, asked by abhinavrisingstar, 1 year ago

work done by coolie is

Answers

Answered by vimal67
2
Work done by coolie is zero because normal farce acts

abhinavrisingstar: coolie
vimal67: its zero
abhinavrisingstar: no
Answered by thannishumapdwufm
1

1. The work done by a coolie walking on levelled road with load on his head is zero


2. The work done is zero when, the direction of displacement and the direction of force on a body are perpendicular to each other because the load from his head does not move away from his head.

Mathematically,

work done = force × distance

= force × 0 [distance = 0 because load does not move from his head]

= 0

therefore work done = 0





abhinavrisingstar: wrong
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