Problem 11: The uniform 7-m steel shaft has a mass of 200 kg and is supported by a ball and socket joint at 1 in the horizontal floor. The ball end B rests against the smooth vertical walls as shown. Compute the forces exerted by the walls and the floor on the ends of the shaft. 2m

The spring is placed between the wall and the 11.5-kg block. If the block is subjected to a force of F = 570 N, determine its velocity in m/s when s = 0.5 m. When s = 0, the block is at rest and the spring is uncompressed. The contact surface is smooth. k = 510 N/m %D k :

1. The two homogeneous bars AB and BC are connected with a pin at B and placed between rough vertical walls. If the coefficient of static friction between each bar and the wall is 0.4, determine the largest angle 0 for which the assembly will remain at rest. 20 in. 6 lb 8 lb 20 in.

26. Determine the force F required to keep the 200 kg crate in equilibrium with the position shown.