A star of mass 8 1030 kg is located at <6 x 1012, 3 1012, 0> m. A planet of mass 9 x 1024

 

A star of mass 8 1030 kg is located at m. A planet of mass 9 x 1024 kg is located at m and is moving with a velocity of m/s. (a) During a time interval of 1 x 106 seconds, what is the change in the planet's velocity? (b) During this time interval of 1 x 106 seconds, what is the change in the planet's position? (c) Why are the procedures you followed in parts (a) and (b) able to produce usable results but wouldn't work if you used a value of of 1 x 109 seconds instead of 1 106 seconds?