I was trying to find an equation to figure out what the velocity a rocket of mass 'm' would need to go in order to get to a height 'h' (ignoring air resistance and rotation and other gravitational effects), i found this equation:
" v: is the vertical velocity in kilometers/second (km/s)
G: is the Universal Gravitational Constant = 6.674*10−20 km3/kg-s2
M: is the mass of the planet or sun in kilograms (kg)
R: is the separation in km between the centers of the objects at the point of release, (R = r + h), where where r is the radius of the planet or sun and the center of the object in km, and h is the separation from the center of the escaping object to the surface of the planet or sun in km
So thus we get: v = −√[2GM/(r + h)]. "
Now do we ignore the mass of the rocket when finding the altitude?
i found this on this website here,http://www.school-for-champions.com/sci ... locity.htm