Arturo O. answered • 05/07/18

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Your approach is correct, but you do not need to know the mass of the satellite. It is sufficient to show that the ratio of orbital energy to the mass of the satellite is negative. If m is the mass of the satellite and M is the mass of the earth,

E = mv

^{2}/2 - GMm/r < 0in order to be in a bound orbit. Then

E/m = v

^{2}/2 - GM/r < 0You know v, G, M, and r. Evaluate v

^{2}/2 - GM/r and examine the sign of the result. Be careful with units.Arturo O.

You are welcome, Julia.

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05/08/18

Julia K.

05/08/18