Test Academy | Two artificial satellites a and b are at a distances ra and rb above the earth’s surface. If the radius of earth is R, then the ratio of their speeds will be [(rb + R)/(ra + R)]⁰.⁵, [(rb + R)/(ra + R)]², (rb/ra)², (rb/ra)⁰.⁵

Question

Two artificial satellites a and b are at a distances ra and rb above the earth’s surface. If the radius of earth is R, then the ratio of their speeds will be

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