1actually it as to be in the upwards direction..
a wire of length l and linear mass density k is lying on a smooth horizontal floor.one end of a wire is pulled with const velocity v.what is the avg.power consumed in lifting the wire just off the ground(end of wire just above the ground)
i wil try posting some gud gues from goiit so we can hv more practise as for this sum there r tow methods to solve this.... since this ques is from dc pandey lets hope anyone can get a simpler but a very common method to solve this suml
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