- #1
Tyrannosaurus_
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Homework Statement
Ball 1 falls from rest from 67 m up. Directly 67 m below, ball 2 has 20 m/s [up]. No air. Where do they meet?
Homework Equations
non-uniform motion, so key kinematics equations.
The Attempt at a Solution
d1 + d2 = 67 m <--- is this okay to do?
v1i *t + 1/2 a *t2 + V2i *t + 1/2 a *t2 = 67 m
0 *t + g/2 *t2 + V2i *t + g/2 *t2 = 67 m
2(g/2 *t2) + V2i *t = 67 m
g *t2) + 20 *t - 67 = 0
Then, quadratic formula... this definitely isn't working. Any suggestions would be greatly appreciated.