Principles of Physics 11th ISV Edition · Center of Mass and Linear Momentum · Problem 77
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Walker, Halliday & Resnick — Center of Mass and Linear Momentum: Problem 77
77 In Fig. 9-64, two long barges are moving in the same direction in still water, one with a speed of 10 km/h and the other with a speed of 20 km/h. While they are passing each other, coal is shoveled from the slower to the faster one at a rate of 1000 kg/min. How much additional force must be provided by the driving engines of (a) the faster barge and (b) the slower barge if neither is to change speed? Assume that the shoveling is always perfectly sideways and that the frictional forces between the barges and the water do not depend on the mass of the barges.
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주어진 조건: 77 In, 10 km, 20 km, 1000 kg
구하는 것: (a) the faster barge and; (b) the slower barge if neither is to change speed? Assume that
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Principles of Physics · 11th ISV Edition
저자: Walker, Halliday & Resnick
출판사: Wiley
단원: Center of Mass and Linear Momentum