30° D B 30
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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UPVOTE will be given! Please write the complete solutions legibly. No long explanation needed. Answer in 2 decimal places.
Dynamics of Rigid Bodies
As part of a department store display, a model train D runs on a slight incline between the store's up and down escalators. When the train and shoppers pass point A, the train appears to the shopper on the up escalator B to move downward at an angle of 22° with the horizontal, and to a shopper on the down escalator C to move upward at an angle of 23° with the horizontal to travel to the left. Knowing that the speed of the escalators is 3 ft/s, determine the speed (ft/s) of the train. (Answer in 2 decimal places)
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