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

Kinematics problem, don't know how to find unknown variables

  • #1

Homework Statement


A rocket is shot straight up with an initial speed at 500 m/s.


Homework Equations


The equations the teacher went over beforehand were

Yf = 1/2 A(T)^2 + Vi(T) + Yi
Vf = A(T) + Vi

The Attempt at a Solution


So far I have

Vf = (-9.8)(T) + 500 m/s
Yf = 4.9T2 + 500T + 0

...and I have no idea how to go about solving for the rest of the unknown variables. It seems like I need T somehow, but I don't know how I can get it from the information given.
 

Answers and Replies

  • #2
1,065
10
What is the question?
 
  • #3
Oh, sorry. Guess I didn't make that clear. You basically just have to find all the variables in the equations.
 
  • #4
1,065
10
I still do not know what is the question.
If you have a rocket with velocity of 500m/s, you can be anywhere in this universe.
Maybe on any planet.
 

Related Threads for: Kinematics problem, don't know how to find unknown variables

Replies
8
Views
2K
Replies
1
Views
3K
Replies
1
Views
2K
  • Last Post
Replies
2
Views
1K
Replies
2
Views
1K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
7
Views
3K
Replies
4
Views
2K
Top