GNG 1105 Lecture Notes - Lecture 5: Statics, Distributive Property, Cross Product
A body is a combination of a large number of particles. so the size of the body should be taken into consideration the point of application of different forces will act on different particles. A rigid body is defined as one that does not deform actual machines do deform under loads, but the deformations are insignificant. Two important concepts are associated with the effect of a force on a rigid body: the moment of a force about a point the moment of a force about an axis. We"ll also discuss a couple, which is a combination of 2 forces that have the same magnitude, parallel lines of action, and opposite sense. Forces acting on rigid bodies can be separated into 2 groups: External forces represent the action of other bodies on the rigid body entirely responsible for external behaviour of rigid body will either cause it to move or ensure it remains at rest.