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2 {cos(30°), 0, sin(30°)}*{0, 0, -9.81 40}+4 {cos(30°), 0, sin(30°)}*{F cos(120°), 0, F sin(120°)}
2 {cos(30°), 0, sin(30°)}*{0, 0, -9.81 40}+4 {cos(30°), 0, sin(30°)}*{F cos(120°), 0, F sin(120°)}
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