an 80 kg astronaut pushes off against a 640 kg satellite producing a force of 120 N for .5 seconds. What is the acceleration of each object during

an 80 kg astronaut pushes off against a 640 kg satellite producing a force of 120 N for .5 seconds. What is the acceleration of each object during the push? what is the final velocity for each object, and how far apart are they at .5 seconds?