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ashna
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How much work is done by a coolie walking on a horizontal platform with a load on his head ? justify .
 one year ago
 one year ago
ashna Group Title
How much work is done by a coolie walking on a horizontal platform with a load on his head ? justify .
 one year ago
 one year ago

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ashna Group TitleBest ResponseYou've already chosen the best response.0
can yu explain ?
 one year ago

akash123 Group TitleBest ResponseYou've already chosen the best response.1
dw:1348894242952:dw
 one year ago

akash123 Group TitleBest ResponseYou've already chosen the best response.1
N is the force applied by coolie on the load...right?
 one year ago

akash123 Group TitleBest ResponseYou've already chosen the best response.1
dw:1348894348026:dw
 one year ago

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

akash123 Group TitleBest ResponseYou've already chosen the best response.1
dw:1348894463777:dw
 one year ago

akash123 Group TitleBest ResponseYou've already chosen the best response.1
work done by coolie = N *( displacement) * cos 90'
 one year ago

ashna Group TitleBest ResponseYou've already chosen the best response.0
yes 0 , okay ty :)
 one year ago

sam291 Group TitleBest ResponseYou've already chosen the best response.0
But 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?
 one year ago
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