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Centripetal Force

why space roc...

Question

why space rockets are usually launched from west to east in the equtorial plane?

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Solution

Our earth rotates from west to east. So, when a rocket is propelled from west to east in the equatorial plane, the rocket gets added advantage of earth’s rotational speed. A component of earth’s rotational speed adds up with the projection speed of the rocket.

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Q. An artificial satellite of earth is launched in circular orbit in equatorial plane of the earth and satellite is moving from west to east. With respect to a person on the equator, the satellite is completing one round trip in

24 hours

. Mass of earth is,

M = 6 \times 10^{24} kg

. For this situation, orbital radius of the satellite is (Take

G = 6.67 \times

10^{- 11} {Nkg}^{- 2} m^{2}

)

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