# NTNUJAVA Virtual Physics LaboratoryEnjoy the fun of physics with simulations! Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/

## JDK1.0.2 simulations (1996-2001) => Dynamics => Topic started by: v_iwaszczenko on May 18, 2005, 07:09:25 am

 Title: Gravitational forces Post by: v_iwaszczenko on May 18, 2005, 07:09:25 am Is there an applet that simulates the orbits of the planets around the sun which is based on the equation for gravitational force   GMm/r^2. This equation does not allow for the position of the planet in relation to the sun. That is earth could be at declination of -12 and at a position of 90 degrees and Mars could be at declination +5 and position 270 degrees. How is the net resolution of these forces handled? Title: Re: Gravitational forces Post by: Fu-Kwun Hwang on June 04, 2009, 02:46:27 pm The mass of the sun is much larger than all the planets. For example: the mass of the sun is 10^6 times  mass of the earth.So the interaction forces between planets are much smaller than interaction force between planet and the sun.It means that the motion for each planet are all similar.You can check out Kepler Motion  (http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=9.0) or How to determined the trajectory of a planetary motion? (http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=629.0) Title: Re: Gravitational forces Post by: Jennifer Barker on January 09, 2017, 12:54:46 pm The gravitational force  is a force  that draws in any question with mass. Each question, including you, Dissertation Writers UK (http://www.dissertationclub.co.uk/) is pulling on each other protest in the whole universe! This is called Newton's Universal Law of Gravitation.