a 62.9 kg astronaut is on a space walk when the tether line tothe shuttle breaks. the astronaut is able to throw a 11 kg oxygentank n a direction away from the shuttle with a speed of 10.3 m/s,propelling the astronaut back to the shuttle. assuming that theastronaut starts from rest, find the final speed of the astronaut after throwing the tank. answer in units of m/s.