PHYS 2211 Chapter Notes - Chapter 3: Farad, Dependent And Independent Variables, Hypotenuse
Document Summary
By plotting data on a graph as a function of time, we do not always see on the graph what we see directly in real life we must translate what graphs are telling us. Independent variable, x, is being graphed: equation graphed is y=f(x, calling horizontal and vertical axes x and y is going to be confusing since we may not always be plotting x and y . Key to describing motion is where and when: do this by setting up coordinate system to describe position for vectors, this equation gives us the value of the position. Velocity: dividing displacement by time it takes to make displacement tells us rate of change (velocity) Acceleration: acceleration ~rate of change of the velocity. Velocity is the rate of change of position we must pay attention to position at two different times but we talk about velocity at a single time. Average velocity ~ used when paying attention to time interval explicitly.
