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With what velocity would a shell have to be projected horizontally so that it might describle a circular orbit round the earth ? Acceleration due to gravity = ` 9.81 m s^(-2)` and radius of the earth = ` 6.4 xx 10 ^(6) m.` |
Answer» Correct Answer - `7.9 xx 10^(3) ms^(-1)` |
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