Lesson: Equilibrium of a Rigid BodyMathematics
In this lesson, we will learn how to solve problems about the equilibrium of rigid bodies in 2D where the sum of forces and the sum of moments equal zero.
Sample Question Videos
In the given figure, determine the magnitude of the force that makes the rod in equilibrium, given that the magnitude of the given force is 7 N and .
A ladder weighing kg-wt and having a length of 5 m is resting in a vertical plane with end on a smooth floor and end against a smooth vertical wall. End is attached by a string to a point on the floor vertically below . Given that is 2.5 m away from the wall, and the weight of the ladder is acting at a point on the ladder 2 m away from , find the tension in the string.
A ladder weighing 34 kg-wt and having a length of 14 m is resting in a vertical plane with its end on a smooth floor and its end against a smooth vertical wall. The end , which is 3.3 m away from the wall, is attached by a string to a point on the floor directly below . Given that the weight of the ladder is acting on the ladder itself at a point 5.6 m away from , find the tension in the string when a man of weight 74 kg-wt stands on the mid-point of the ladder.