Deimos, a moon of mars, is about 12 km in diameter with mass 1.5×1015 kg. suppose you are stranded alone on deimos and want to play a one-person game of baseball. you would be the pitcher, and you would be the batter!

part a
with what speed would you have to throw a baseball so that it would go into a circular orbit just above the surface and return to you so you could hit it?
express your answer with the appropriate units.

part c
how long (in hours) after throwing the ball should you be ready to hit it?