The asteroid 243 Ida has a mass of about 4.0×1016 and an average radius of about 16 (it’s not spherical, but you can assume it is). A)Calculate the speed with which you would have to throw a rock to put it into orbit around the asteroid 243 Ida, near the surface. v= ? B)How long would it take for your rock to return and hit you in the back of the head? t=? Arad= v^2 / R v=2 pie R / T A rad= 4 pie^2 R /T^2 Fnet= m (v^2/R) My brain is fried trying to figure out these problems since i missed lecture because i was sick. trying to submit this hw thats due in like 2 hours any help will be much appreciated!!!!