Solve the problem.At lift-off, a rocket weighs 40.2 tons, including the weight of fuel. It is fired vertically, and the fuel is consumed at the rate of 2.23 tons per 1,000 ft of ascent. How much work is done in lifting the rocket to an altitude of 10,000 ft?
A. 3.28 x 105 ft?ton
B. 2.91 x 105 ft?ton
C. 3.46 x 105 ft?ton
D. 5.14 x 105 ft?ton
Answer: B
Mathematics
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