The crate moves in a smooth vertical slot from A to B as shown, when a constant vertical force F is applied to the rope. It starts motion from rest, and the attached spring has no deformation at A. If the mass of the crate is 6 kg, and the vertical 0,4 m displacement between A and B (Sg) is 0.20 m, B determine the required constant vertical force F when the crate reaches B with a velocity of vå = 3 m/s. The size and mass of the pulley can be k = 100 N/m neglected. www

The crate moves in a smooth vertical slot from A to B as shown, when a constant vertical force F is applied to the rope. It starts motion from rest, and the attached spring has no deformation at A. If the mass of the crate is 6 kg, and the vertical 0,4 m displacement between A and B (Sg) is 0.20 m, B determine the required constant vertical force F when the crate reaches B with a velocity of vå = 3 m/s. The size and mass of the pulley can be k = 100 N/m neglected. www

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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