CALC? A system consists of two particles. At t = 0 one particle is at the origin; the other, which has a mass of 0.50 kg, is on the y -axis at y = 6.0 m. At t = 0 the center of mass of the system is on the y -axis at y = 2.4 m. The velocity of the center of mass is given by (a) Find the total mass of the system. (b) Find the acceleration of the center of mass at any time t. (c) Find the net external force acting on the system at t = 3.0 s.
2400 Lecture 1 Topics: What’s a system Inputs / Outputs Definitions: Boundary -Chosen to separate system from the environment Parameters -Variables represent key properties of the system e.g. mass, atmosphere coefficient Signals -Information or instructions delivered to or measured from the system Input -Signal that acts on a system and causes it to react Output -Signal that is a result of the actions of the inputs on the system Elements -Fundamental building blocks Across variables -Things that change Through variable -Stays the same through element Material: