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A satellite is lauched in the equatorial...

A satellite is lauched in the equatorial plane in such a way that it can transmit signals upto `60^(@)` latitude on the earth. The orbital velocity of the satellite is found to be `sqrt((GM)/(alphaR))` find the find of `alpha`

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`rcos60^(@)=Rimpliesr=2R` orbital velocity `v_(0)=sqrt((GM)/(r))=sqrt((GM)/(2R))impliesalpha=2`.
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