S.O.S. Mathematics CyberBoard

Your Resource for mathematics help on the web!
 It is currently Mon, 20 May 2013 00:48:25 UTC

 All times are UTC [ DST ]

 Page 1 of 1 [ 1 post ]
 Print view Previous topic | Next topic
Author Message
 Post subject: Shooting a rocketPosted: Tue, 17 Apr 2012 16:38:43 UTC
 S.O.S. Oldtimer

Joined: Sat, 21 Jan 2012 03:59:22 UTC
Posts: 182
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

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 1 post ]

 All times are UTC [ DST ]

Who is online

Users browsing this forum: No registered users

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forum

Search for:
 Jump to:  Select a forum ------------------ High School and College Mathematics    Algebra    Geometry and Trigonometry    Calculus    Matrix Algebra    Differential Equations    Probability and Statistics    Proposed Problems Applications    Physics, Chemistry, Engineering, etc.    Computer Science    Math for Business and Economics Advanced Mathematics    Foundations    Algebra and Number Theory    Analysis and Topology    Applied Mathematics    Other Topics in Advanced Mathematics Other Topics    Administrator Announcements    Comments and Suggestions for S.O.S. Math    Posting Math Formulas with LaTeX    Miscellaneous