Two crave barges are tender in the identical bearing in quiet instil, individual with v1 = 10km/h and the other with v2 = 20 km/h. While they are departure each other, coal is shoveled from the slower to the faster individual at a scold of 1000 kg/minute. How plenteous appended intensity must be granted by the driving engines of the faster barge if it is to preserve a perpetual progressive hurry? Assume that the shoveling is always perfectly sideways, and that the frictional intensitys betwixt the barges and the instil do not be on the majority of the barges. The boats are identical lengths widths awe. Their bulk are identical. Can you delight likeness exertion and how to do it? Its a multiple excellent scrutiny so likely answers are A) 667N B) 0N C) 185N D) 92N E) 278 N
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