PHYS 1P21 Lecture Notes - Lecture 8: Ais People, Friction, Centripetal Force

• School: Brock University
• Department: Physics
• Course: PHYS 1P21
• Professor: Santo D' Agostino

Document Summary

1: if the total of all forces acting on an object is zero, then the acceleration of the object is zero. 2: f= ma, which is equivalent to a= f/m; this is a vector equation! This means that if there is a net force acting on an object, then the object will accelerate. The direction of the acceleration is the same as the direction of the net force. The magnitude of the acceleration is equal to the magnitude of the net force divided by the mass of the object. 3: forces always occur in pairs; even if we only talk about one of the forces in the pair, the partner force is always there. If object a exerts a force on object b, then automatically (and simultaneously) object b exerts a force on object a. The two forces have equal magnitudes and opposite directions.