# Math Help - uni mechanics

1. ## uni mechanics

A

2. What have you tried?
I assume that you know the kinematic equations.

$x=x_{0}+v_{0}t+\frac{1}{2}at^{2}$

For each of the particles you are given the initial position $x_{0}$
Their initial velocity $v_{0}$ and their acceleration $a$.

Hint: for simplicity since Z is arbitrary and you are only care about distance from z you might as well put the origin of your coordinate system at z and so $z=0$.

Now write out each of the kinematic equations you will get a system of 2 equations in x and t.

3. What ideas have you gotten so far?

[EDIT] I'll leave you in TheEmptySet's capable hands.

4. fixed it now