posted by joe .
A 61.3 kg astronaut is on a space walk when
the tether line to the shuttle breaks. The
astronaut is able to throw a 11.0 kg oxygen
tank in a direction away from the shuttle with
a speed of 10.6 m/s, propelling the astronaut
back to the shuttle.
Assuming that the astronaut starts from
rest, ﬁnd the ﬁnal speed of the astronaut after
throwing the tank.
Answer in units of m/s