Need Physics help with launching from angle w/ initial velocity

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Homework Help Overview

The problem involves launching a steel ball from a floor at a 45° angle with an initial velocity of 3.3 m/s, and participants are discussing how to determine the distance the ball will travel before hitting the floor.

Discussion Character

  • Exploratory, Mathematical reasoning

Approaches and Questions Raised

  • Participants are attempting to apply the equations of motion in both x and y directions. One participant mentions using a 45-45-90 triangle method but finds it unhelpful. Another participant suggests using standard constant acceleration equations and questions how long the ball stays in the air.

Discussion Status

The discussion is ongoing, with participants providing guidance on how to approach the problem. There are multiple lines of reasoning being explored, particularly regarding the application of equations for both horizontal and vertical motion.

Contextual Notes

Participants are working under the constraints of the problem's setup and are trying to clarify the necessary equations and assumptions related to projectile motion.

astru025
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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!,
 
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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:​
 
Okay so I have X=3.3cos(45)t
This gets me to X=2.33t ... What do I do from hear?
 
How long does the steel ball stay in the air after launch?
 
hi astru025! :smile:

(just got up :zzz:)
astru025 said:
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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