4. The bar has a mass of 10 kg and is subjected to a couple moment of M-50 N-m and a force of P-80 N, which is always applied perpendicular to the end of the bar. The stiffness of spring is k-30 N/m and its free length is 0.5 m. The spring remains in the vertical position due to the roller guide at B. Determine the total work done by all the force acting on the bar when it has rotated downward from q-0° to 90°

4. The bar has a mass of 10 kg and is subjected to a couple moment of M-50 N-m and a force of P-80 N, which is always applied perpendicular to the end of the bar. The stiffness of spring is k-30 N/m and its free length is 0.5 m. The spring remains in the vertical position due to the roller guide at B. Determine the total work done by all the force acting on the bar when it has rotated downward from q-0° to 90°

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter5: Three-dimensional Equilibrium

Section: Chapter Questions

Problem 5.21P: The homogeneous 20-kg door is held in the horizontal plane by a thrust hinge at O, a hinge at A, and...

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