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A planet moves around the sun. At a given point P, it is closest from the sun at a distance d_(1) and has a speed v_(1). At another point Q, when it is farther from the sun at a distance d_(2), its speed will be |
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Answer» `(d_(1)^(2))/(d_(2)^(2))v_(1)` `mv_(1)d_(1)=mv_(2)d_(2) rArr v_(2)=(v_(1)d_(1))/(d_(2))`. |
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