sustainable thesaurus. Retrieved October 19, 2015, from http://www.powerthesaurus.org/sustainable/synonyms.
the mass of the object determines the amount of inertia in an object. Mass determines the amount of inertia an object has. It is an object's intrinsic property to resist change. the two main things are speed and velocity. You have to factor in a bunch of smaller things too, but those don't really have much effect.
Best Answer: According to Newton, gravity and inertia are the two factors that work together to keep planets in orbit. Inertia is the tendency of the object to resist change in its motion, so once its moving it wants to stay moving in a straight line.