• Support PF! Buy your school textbooks, materials and every day products via PF Here!

Projectile Motion

458
0
Given:
A fixed barrel velocity, [tex]v_{0}[/tex]
An elevation of the piece of artilery, e
Target distance, x
Target elevation, te

Find:
time of travel, t
angle of the artilery, a

Equations:
[tex]y_{0}[/tex] = te - e

x = [tex]v_{0}[/tex] * cos(a) * t
y = [tex]y_{0}[/tex] + [tex]v_{0}[/tex] * sin(a) * t - 0.5 * g * [tex]t^{2}[/tex]

If you try solving these for a and t, it gets ugly. Is there an equation I am missing or another way around this?
 

Cyosis

Homework Helper
1,495
0
You're y_0 seems wrong. At t=0 the elevation should be e should it not? Other than that it looks good, two equations, two variables therefore solvable.

tip:put your entire equations between tex brackets it will look at a lot better.
 

Related Threads for: Projectile Motion

  • Posted
Replies
3
Views
1K
  • Posted
Replies
8
Views
1K
  • Posted
Replies
1
Views
1K
  • Posted
Replies
2
Views
889
  • Posted
Replies
1
Views
2K
  • Posted
Replies
1
Views
774
  • Posted
Replies
12
Views
3K
  • Posted
Replies
3
Views
1K

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top