- #1
Chris T.
- 4
- 0
Homework Statement
Find: The minimum initial velocity at which a projectile should be shot vertically from the surface of the Earth so that it does not fall back to Earth. Note: This requires that v=0 as y approaches infinity.
Homework Equations
a = -g[(R^2)/((R+y)^2)]
g = 9.81 m/s^2
R = 6356 km (6.356E6 m)
The Attempt at a Solution
My thought process is to substitute dv/dt for a and integrate to get to velocity, but it seems like I want to find velocity as a function of position? I am stuck, it is the acceleration as a function of position that is confusing me.