Need Physics help with launching from angle w/ initial velocity

[astru025]

Homework Statement

You now place the launcher on the floor and shoot a steel ball at an angle of 45°. If you had previously measured an initial velocity of 3.3 m/s for this launcher, then how far from the launcher do you expect the ball to hit the floor?

Homework Equations

I can't find any equations for this problem.

The Attempt at a Solution

I tried using 45-45-90 angle method to figure out something but nothing has seemed to work. Any help/tips would be appreciated!,

 

[tiny-tim]

hi astru025!

use the standard constant acceleration equations in the x and y directions …

show us what you get ​

 

[astru025]

Okay so I have X=3.3cos(45)t
This gets me to X=2.33t ... What do I do from hear?

 

[SteamKing]

How long does the steel ball stay in the air after launch?

 

[tiny-tim]

hi astru025!

(just got up :zzz:)

Okay so I have X=3.3cos(45)t
This gets me to X=2.33t ... What do I do from hear?

now do the same thing for the y direction,

then use the fact that it lands when y = 0