PHYSICS 1A03 Lecture Notes - Lecture 9: Net Force

• School: McMaster University
• Department: Physics
• Course: PHYSICS 1A03
• Professor: S. Cormier, K. Dalnoki-Veress

Document Summary

*an interaction between two bodies, and object and an agent. *something which can be produced with or without contact. Note: if something without which there is no acceleration. Note: in this course, we assume the rope is massless and frictionless. *the second rule of motion: f = ma. A restoring force: the elastic tries to return to equilibrium configuration. The magnitude of the restoring force is proportional to how muvh it has been stretched. K => spring constant =>measure the stiffness of the spring. * if can object is not accelerating, then the net force must be zero. * if the object is accelerating, a is proportional to the net force. * force always occur in pairs, two interacting objects exert forces on each other, equal in magnitude, but opposite in direction: there are three forces act on an object. In which direction does object accelerate: a block is attached to a spring which is itself affixed to a wall.