PHY 105 Lecture Notes - Lecture 8: Parallelogram, Net Force

• School: University of Maine
• Department: Physics
• Course: PHY 105
• Professor: David E Clark

Document Summary

A force is an interaction between two objects: newton"s third law force pair. Object a exerts a force on object b object b exerts a force on object a. Every force that occurs in nature occurs as one part or member of a third law. Are not the only forces acting on the objects: ex. Horse pulls cart, cart pulls horse (the force pair). Namely, the force the horse exerts on the ground. Have equal magnitudes: magnitude: the force in relation to mass. A woman sits on a chair, the reaction force to the woman"s gravitational force in the sense of. The gravitational force by the woman on the earth. The components of a vector are parallel to the x and y axis. When you add the components together, you get the vector (think parallelogram method) Special ratios: the square root of the first two numbers added together = the square of the second number.