331_Dynamics 11ed Manual

331_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 15 * Problem 15-44 A boy A having weight W A and a girl B having weight W B stand motionless at the ends of the toboggan, which has weight W t . If A walks to B and stops, and both walk back together to the original position of A (both positions measured on the toboggan), determine the final position of the toboggan just after the motion stops. Neglect friction. Given: W A 80 lb = W B 65 lb = W t 20 lb = d 4f t = Solution: The center of mass doesn t move during the motion since there is no friction and therefore no net horizontal force W B dW A W B + W t + () d' = d' W B
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This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.

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