12. The 20-kg crate is subjeeted to a force having a constant direction and a magnitude F = 100 N. When s =15 m, the erate is moving to the right with a speed of 8 m/s. Determine its speed when s 25 m. The coefficient of kinetic friction between the crate and the ground is u=0.25.The block shown was initially at rest on the plane. A force P 500 N is applied on F 30

12. The 20-kg crate is subjeeted to a force having a constant direction and a magnitude F = 100 N. When s =15 m, the erate is moving to the right with a speed of 8 m/s. Determine its speed when s 25 m. The coefficient of kinetic friction between the crate and the ground is u=0.25.The block shown was initially at rest on the plane. A force P 500 N is applied on F 30

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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