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A Uniform Plank XY Is Supported by Two Equal 120-N

Question 5

Multiple Choice

A uniform plank XY is supported by two equal 120-N forces at X and Y, as shown.The support at X is then moved to Z (half-way to the plank center) .The supporting forces at Y and Z are then: A uniform plank XY is supported by two equal 120-N forces at X and Y, as shown.The support at X is then moved to Z (half-way to the plank center) .The supporting forces at Y and Z are then: A) F<sub>Y</sub><sub> </sub>= 240 N, F<sub>Z</sub> = 120 N B) F<sub>Y</sub><sub> </sub>= 200 N, F<sub>Z</sub> = 40 N C) F<sub>Y</sub><sub> </sub>= 40 N, F<sub>Z</sub> = 200 N D) F<sub>Y</sub><sub> </sub>= 80 N, F<sub>Z</sub> = 160 N E) F<sub>Y</sub><sub> </sub>= 160 N, F<sub>Z</sub> = 80 N


A) FY = 240 N, FZ = 120 N
B) FY = 200 N, FZ = 40 N
C) FY = 40 N, FZ = 200 N
D) FY = 80 N, FZ = 160 N
E) FY = 160 N, FZ = 80 N

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