i\'ve tried several different ways of solving this problem, ican\'t seem to get

Question

i've tried several different ways of solving this problem, ican't seem to get one of the answers that are given. Somehelp would be great! 4. A dam is 32 m high and 1200 m wide. Calculate the totalhorizontal force exerted on the dam by the water on the dam. A. 6.0 x 109 N B. 9.9x 109 N C. 1.8x 1010N D. 1.4x 1010N i've tried several different ways of solving this problem, ican't seem to get one of the answers that are given. Somehelp would be great! 4. A dam is 32 m high and 1200 m wide. Calculate the totalhorizontal force exerted on the dam by the water on the dam. A. 6.0 x 109 N B. 9.9x 109 N C. 1.8x 1010N D. 1.4x 1010N A dam is 32 m high and 1200 m wide. Calculate the totalhorizontal force exerted on the dam by the water on the dam. 4. A dam is 32 m high and 1200 m wide. Calculate the totalhorizontal force exerted on the dam by the water on the dam. A. 6.0 x 109 N B. 9.9x 109 N C. 1.8x 1010N D. 1.4x 1010N

Explanation / Answer

Horizontal force acting on the dam F =(1/2)gh2W                                                        = 0.5 x 1000 kg/m3 x 9.8m/s2 x (32m)2 x 1200 m                                                        = 6.0 x 109 N

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