The crate, which has a mass of 140 kg, is subjected to the action of the three forces shown in the figure. If it is originally at rest, determine the friction force when P1 = 750 N, P, = 900 N, P3 = 500 N and 0 = %3D %3D %3D %3D 25°. Assume the coefficient of kinetic friction between the crate and the surface is Hk = 0.40. P2 P1 P3 Select one: a. 260.15 N b. 161.84 N c. 315.34 N d. 457.76 N

The crate, which has a mass of 140 kg, is subjected to the action of the three forces shown in the figure. If it is originally at rest, determine the friction force when P1 = 750 N, P, = 900 N, P3 = 500 N and 0 = %3D %3D %3D %3D 25°. Assume the coefficient of kinetic friction between the crate and the surface is Hk = 0.40. P2 P1 P3 Select one: a. 260.15 N b. 161.84 N c. 315.34 N d. 457.76 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 7.72P

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