Solve the Problem $11 \mathrm { ft }$ Long And $22 \mathrm { ft }$

question 209

Multiple Choice

Solve the problem.
-A swimming pool has a rectangular base $11 \mathrm { ft }$ long and $22 \mathrm { ft }$ wide. The sides are $5 \mathrm { ft }$ high, and the pool is half full of water. How much work will it take to empty the pool by pumping the water out over the top of the pool? Assume that the water weighs $62.4 \mathrm { lb } / \mathrm { ft } ^ { 3 }$ . Give your answer to the nearest $\mathrm { ft } \cdot \mathrm { lb }$ .

• A) 188,760 ft · lb
• B) 94,380 ft · lb
• C) 141,570 ft · lb
• D) 70,785 ft · lb

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