- #1
David89
- 19
- 4
Homework Statement
On my physics 200 final from Athabasca
A volcano shoots off a rock at a 39 degree angle, at an elevation of 1200m, and the rock has a horizontal range of 5500m.
X = 5500m
Y0 = 1200m
Vx = Unknown
Vy = Unknown
V = Unknown
t = Unknown
a (vertical) = g = -9.8 m/s^2
Homework Equations
Equation for horizontal motion: (Vx)(t) = X
Equation for vertical motion: Y = (Y0) + (Vy)(t) +0.5at^2
The Attempt at a Solution
No idea, I don't think there is enough provided information to solve, and this question messed me up on my final pretty bad.
I did end up using the relation V0^2*sin(a)^2 / g, but I know this only works for projectile motion on level ground. I used it anyways cause I didn't know what else to do...