Question: The tractor and scraper units shown are connected by a vertical pin located 1.8 ft behind the tractor wheels. The distance from C to D

The tractor and scraper units shown are connected by a vertical pin located 1.8 ft behind the tractor wheels. The distance from C to D is 2.25 ft. The center of gravity of the 20-kip tractor unit is located at Gt, while the centers of gravity of the 16-kip scraper unit and the 90- kip load are located at Gs and G1, respectively. Knowing that the tractor is at rest with its brakes released, determine

(a) The reactions at each of the four wheels,

(b) The forces exerted on the tractor unit at C and D.

-7.2t- -1es - 36t

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FBD Entire machine 208 22 458 36 W 90 kips w 16 kips Wt Zokips FBD Tractor 225 ft TR 20k... View full answer

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