Search & Filtering
The bottom of the bar is hinged to the wall, and the upper end of the bar is attached to the wall by means of a rope which makes 45 degrees with the wall. If the uniform bar weighs 400 N and makes 60o with the wall, find (a) the tension in the rope and (b) the horizontal and vertical forces exerted by the wall at the pivot.
The uniform bar on figure E is rigid and makes 30o with the wall. At the upper end is attached a horizontal rope AB, the other end of the rope being fixed at a point in the wall. A load of 300 kg is hung from the upper end of the bar. If the mass of the bar is 100 Kg, determine (a) the tension in the rope and (b) the force at a point B exerted by the bar
A rigid uniform bar is pivoted (or hinged at its lower end on a wall and makes an angle of 30o with the vertical. To the upper end of the bar is attached a horizontal rope whose other end is attached to the wall. A load of 2000 N is hung from the upper end of the bar. If the bar is 6.6 m long and has weight of 1500 N, find (a) the tension in the rope and (b) the vertical and horizontal force exerted by the wall on the pivot at the lower end of the bar.
The weight of a uniform ladder 13 feet long is 150 N. It is placed against a smooth wall so that its lower end is at a distance of 5 feet from the wall. A man weighing 490 N stands on the ladder at a point 3 feet from the upper end. (a) Find the force which the ladder exerts against the wall and (b) find the horizontal and vertical components of the force exerted by the ladder on the floor.
A 3.10 m uniform ladder weighing 8- N is placed against a smooth wall so that its lower end is 2 m away from the wall. (a) What is the force exerted by the ladder against the wall? (b) What is the direction and magnitude of the force exerted by the ladder against the floor?
A 5 m uniform ladder weighing 120 N is placed against a smooth wall in such a way that it makes an angle of 60o with the horizontal. A man weighing 480 N climbs up the ladder and stays 1.3 m from its upper end. Find (a) the force exerted by the wall against the ladder and (b) the horizontal and vertical components of the force exerted by the floor on the lower end of the ladder.
A uniform ladder weighing 100N leans against a smooth vertical wall with its lower end resting on a rough floor, the ladder making an angle of 70o with the horizontal. Find (a) the force exerted by the wall on the ladder and (b) the force exerted by the floor at the lower end of the ladder.
A uniform beam 3m long weighs 100N. Loads of 50 N and 150 N are placed on the beam at points which are ½ m and 2½ m, respectively, from its left end. If the beam is kept in a horizontal position by supports at its two ends, find these reactions.
If the force in problem 12 required to keep the block at rest is directed horizontally (a) What is the force, and (b) what is the force being applied by the plane surface on the block?
A 50 N block is placed on a smooth inclined plane which is 5 meters long and 3 meters high. (a) What force parallel to the plane and applied to the block will keep the block in equilibrium? (b) What force is applied by the plane to the block.
