Question

if is the motion of the body uniform or accelerated .ifit gose round the sun with constand speed in circular orbit

Answer 1

The circular motion got by the body in space is due to gravity and centripetal force. While for uniform motion it can't acclereted iff the unkown force act on it. When look on earth the body travels or earth is forced to be in uniform. Because earth has matter everywhere and due to this matter earth has friction. While in space there is vaccum and empty part of space which don't has matter there is no friction. So if u throw anything is space with a force the body will be always at continuous and at constant speed iff no force is acted on it.