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).(adsbygoogle = window.adsbygoogle || []).push({});

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!!!!

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# Homework Help: Circular Motion and Gravitation of asteroid

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