In my model one acceleration is positive and the other is negative, but I couldn't figure out how to make a graph that would properly include both of these, so for simplicities sake I made both of them have negative acceleration and positive velocity. Do you have any idea how I could do it the...
I have fixed all the things that have been suggested. My new graph is posted below. Does it look better?
Note - I couldn't figure out how to get desmos to round the x-intercept, so I just recalculated the line equations to cross the y-axis at exactly 3.2 and 5.1. Does this work?
Model attached below.
Changed Sarah's 65 mph to m/s and got 29 m/s.
Sarah's initial position is positive. Her initial velocity is negative. Her acceleration is positive; Andrew's initial position is negative. His initial velocity is positive. His acceleration is negative.
Graph is attached...