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Need Physics help with launching from angle w/ initial velocity

  • Thread starter astru025
  • Start date
  • #1
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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!,
 

Answers and Replies

  • #2
tiny-tim
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hi astru025! :wink:

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

show us what you get :smile:
 
  • #3
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Okay so I have X=3.3cos(45)t
This gets me to X=2.33t ... What do I do from hear?
 
  • #4
SteamKing
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How long does the steel ball stay in the air after launch?
 
  • #5
tiny-tim
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hi astru025! :smile:

(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 :wink:
 

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