Projectile Motion without the Angle

AI Thread Summary
The discussion revolves around a projectile motion problem where the user initially struggles to solve for the distance traveled without knowing the launch angle. They express frustration after spending time on the problem but eventually realize that they overlooked some basic trigonometric identities that could aid in their calculations. The user successfully resolves the issue after recalling these identities. This highlights the importance of understanding fundamental concepts in physics, particularly trigonometry, when tackling projectile motion problems. Overall, the conversation emphasizes problem-solving strategies in physics homework.
SHISHKABOB
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Homework Statement



Hi guys, I'm trying to start from scratch on figuring out the projectile motion problem. But I think I've hit a roadblock. I am trying to solve a problem where I gave myself initial velocity and how far the object travels, but I can't seem to find a way to solve this without knowing the angle that the object was fired at.

Homework Equations


The Attempt at a Solution



I've been scribbling away at this for about an hour and I don't think I've really gotten anywhere.
 
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oops, nevermind, figured it out

I forgot some simple trig identities that helped me out
 

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