SITUATION 3: In Figure FRC - 221, if the coefficient of static friction at the contact points A and B is μs = 0.4, determine the following if the girl is 75-lb and the plank is 20-lb: 8. Reaction at A (in lb). A. 90.4 B. 60.2 C. 35.2 D. 85.6 A B 9. Reaction at B (in lb). A. 90.4 B. 60.2 C. 35.2 D. 85.6 10. The minimum distance d (in ft) can a girl stand on the plank without causing it to slip. C. 3.34 A. 2.23 B. 1.68 D. 3.21 60% 12 ft 45°

SITUATION 3: In Figure FRC - 221, if the coefficient of static friction at the contact points A and B is μs = 0.4, determine the following if the girl is 75-lb and the plank is 20-lb: 8. Reaction at A (in lb). A. 90.4 B. 60.2 C. 35.2 D. 85.6 A B 9. Reaction at B (in lb). A. 90.4 B. 60.2 C. 35.2 D. 85.6 10. The minimum distance d (in ft) can a girl stand on the plank without causing it to slip. C. 3.34 A. 2.23 B. 1.68 D. 3.21 60% 12 ft 45°

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter4: Coplanar Equilibrium Analysis

Section: Chapter Questions

Problem 4.10P: Draw the FBD of the entire frame, assuming that friction and the weights of the members are...

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