An example where the displacement is normal to the direction of the force
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w.d=f.s.cosA
f-force
s-displacement
A-angle between f and s
cosA=cos90
cos90=0
hence work done=0
EXAMPLE-
here is how you can fool a coolie
he carries luggage on his head so force is in upward direction and he is moving forward so displacement is in forward direction . hence work done by coolie=0
no workdone = no money
f-force
s-displacement
A-angle between f and s
cosA=cos90
cos90=0
hence work done=0
EXAMPLE-
here is how you can fool a coolie
he carries luggage on his head so force is in upward direction and he is moving forward so displacement is in forward direction . hence work done by coolie=0
no workdone = no money
Answered by
1
When a cookie walks on a horizontal ground while carrying a load on his head.
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