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ashna
 3 years ago
How much work is done by a coolie walking on a horizontal platform with a load on his head ? justify .
ashna
 3 years ago
How much work is done by a coolie walking on a horizontal platform with a load on his head ? justify .

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akash123
 3 years ago
Best ResponseYou've already chosen the best response.1N is the force applied by coolie on the load...right?

akash123
 3 years ago
Best ResponseYou've already chosen the best response.1now...definition of work= F . (Displacement) it's a dot product....right?

akash123
 3 years ago
Best ResponseYou've already chosen the best response.1work done by coolie = N *( displacement) * cos 90'

sam291
 3 years ago
Best ResponseYou've already chosen the best response.0But if he wasn't exerting a force with the help of friction, on the platform, in the opposite direction from where he's going, then he wouldn't move forward. And the force in the opposite direction caused by friction will be greater because of the load on his head. Am I wrong?
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