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4. Answer the following questions about the jack system shown below. At the time depicted, 0=40° and the hydraulic arm cylind

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consider FBD of Jack system h T- o 340 2 so h= 1 sinuo 0.6427m = Also tan & = 0.5208 h 2 - Cos 400 0.6427 1.233 6 = 27.519 No& b 7112.49-90) = 22:49 so perpendicular velocity Vcos 2 2.49° - 2-5 cos 22.49 = 2.31 m/s Now using v=rw rads. 2.31 WT y 2.3

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