Problem 13-59 The sled and rider have a total mass M and start from rest at 4(b, 0). If the sled descends the smooth slope, which may be approximated by a parabola, determine the normal force that the ground exerts on the sled at the instant it arrives at point B. Neglect the size of the sled and rider. Hint: Use the result of Prob. 13-58 Units Used: kN = 10° N Given: a = 2 m b = 10 m c = 5 m M = 80 kg g = 9.81 Solution: V2gc y(x) = c Mg 20 y'(x) = y"(x) = P(x) y"(x) 189

Problem 13-59 The sled and rider have a total mass M and start from rest at 4(b, 0). If the sled descends the smooth slope, which may be approximated by a parabola, determine the normal force that the ground exerts on the sled at the instant it arrives at point B. Neglect the size of the sled and rider. Hint: Use the result of Prob. 13-58 Units Used: kN = 10° N Given: a = 2 m b = 10 m c = 5 m M = 80 kg g = 9.81 Solution: V2gc y(x) = c Mg 20 y'(x) = y"(x) = P(x) y"(x) 189

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.79P: The coefficient of rolling resistance between the 30-kg lawn roller and the ground is r=0.1. (a)...

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