The horizontal force P = 85 N is applied to the upper block with the system initially stationary. The block masses are mA = 19 kg and mg = 9 kg. Determine the magnitudes of the frictions forces F₁ (between block A and the ground) and F2 (between blocks A and B) for the following conditions on the coefficients of static friction: (a) M₁ = 0.37,₂ = 0.38 and (b) ₁ = 0.26, 20.48. Assume that the coefficients of kinetic friction are 74 percent of the static values. P Answers: (a) F₁ = (b) F₁ = i B 20⁰ A 0.37 i 0.26 ܕܠܐ . H₁ N F₂= N F₂= i 0.38 i 0.48 N N

The horizontal force P = 85 N is applied to the upper block with the system initially stationary. The block masses are mA = 19 kg and mg = 9 kg. Determine the magnitudes of the frictions forces F₁ (between block A and the ground) and F2 (between blocks A and B) for the following conditions on the coefficients of static friction: (a) M₁ = 0.37,₂ = 0.38 and (b) ₁ = 0.26, 20.48. Assume that the coefficients of kinetic friction are 74 percent of the static values. P Answers: (a) F₁ = (b) F₁ = i B 20⁰ A 0.37 i 0.26 ܕܠܐ . H₁ N F₂= N F₂= i 0.38 i 0.48 N N

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 7.63P: The leather rein used to fasten the horse to the hitching rail weighs 3.5 oz per foot. The...

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