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Orbital speed if geo-stationary satellit...

Orbital speed if geo-stationary satellite of earth is …... approximately.

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The correct Answer is:
`3kms^-1`
Orbital speed of satellite `v_0=sqrt((GM_e)/r)`
`G=6.67xx10^-11" SI unit", M_e=5.98xx10^24kg`
and orbital radius `r=42260xx10^3m`
`:.v_0=sqrt((6.67xx10^-11xx5.98xx10^24)/(42260xx10^3))`
`=sqrt((6.67xx5.98xx10^10)/(42260))`
`sqrt(9.4xx10^6`
`:.v_0=3xx10^3ms^-1`
`=3kms^-1`
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