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anyway, we shot the ball from a 10 cm height, at 10degrees, and the ball landed 199 cm away from the point of origin. So i set the problem up like this:

Yfinal= -.1 m

Yinitial= 0 m

Vyinitial= unknown

Vyfinal= unknown

A=-9.8m/s sq

T= unknown

Xfinal= 1.99 m

Xinitial= 0 m

Vx= unknown

A= 0 m/s sq

T= unknown

I have tried to explain how i tried to solve this with text, but i think i am not advanced enough to do that! essentially, i did some messy stuff with sin and cos, and came out with an initial velocity of 7.44 m/s. this is way off from the 5.75 i got for the first two experiments, and my lab partners got 2 completely different answers. I was wondering if it would be possible for someone to try to help me set up the problem. I can post what i did before if i need to, but it is proving very difficult! Thanks for any help

charla