# uni mechanics

• July 8th 2010, 08:32 AM
bendojac
uni mechanics
A
• July 8th 2010, 08:44 AM
TheEmptySet
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.
• July 8th 2010, 08:44 AM
Ackbeet
What ideas have you gotten so far?

[EDIT] I'll leave you in TheEmptySet's capable hands.
• July 13th 2010, 09:05 AM
bendojac
fixed it now