Take the 2-minute tour ×  I've calculated the displacements and
average velocities of both particles.  $A$ average velocity $=
1.1180m/s$ displacement is $11.1803m$. $B$ average velocity $=
0m/s$ displacement is $0m$.  When, approximately, are the
particles at the same position?  I can't figure out how to find
the when they are at the same position. I can look at the graph
and tell it's around the $1.75s$ mark.  When, approximately, do
the particles have the same velocity?   It's when both angles
are the same, around $6s$.  Graph of the particles.
share|improve this question add comment  2 Answers  up vote 1
down vote accepted  I agree with Michael that the question is
probably expecting you to estimate the answers from the graph.
However, this is what I would do if these were experimental
results I was analysing.  Let's assume that the blue line is a
straight line $f(x)$ and the curve is a quadratic $g(x)$. A
straight line has the form $y = ax + b$ where $a$ is the
gradient and $b$ is the $y$ intercept. Fro