# Projectile motion calculations from data gathered during trials

1. Oct 11, 2008

### wortman

1. The problem statement, all variables and given/known data
solve projectile motion formulas for $$\Theta$$ and $$v_0$$
all measurements are in m, t is seconds
$$y_0=.005$$
$$x_0=0$$
the averages from my trials were:
$$x=8.775 m$$
$$t=1.3 s$$

2. Relevant equations
$$x=x_0+v_0*cos\Theta*t$$
$$y=y_0+v_0*sin\Theta*t+.5a_yt^2$$

3. The attempt at a solution
after plugging in my numbers gives:
for x
$$6.75=v_0*cos\Theta$$
which as far as I can see still has two unknowns, where do I go from here?

I'm pretty confused about the y component because I'm not even sure what y is supposed to be. Don't I need a y(max) number first?

Last edited: Oct 11, 2008