What is the orbital period of revolution...

What is the orbital period of revolution of an artificial satellite revolving in geostionary orbit?

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Safety of a person depends upon the momentum with which the person hits the planet.
`V_e^2= 2g_eh_e`
`V_p^2= 2g_ph_p`
`V_e=V_p`
`g_eh_e=g_ph_p`
`h_p=g_eh_e/gp`
`=9.8xx2=110m`

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