Normal 0 false false false EN US X NONE X NONE MicrosoftInternetExplorer4 Assertion A Artifical sat...........

Science Affairs Space

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Assertion (A): Artifical satellites are always launched from the earth in the eastward direction.

Reason (R): The earth rotates from west to east and so the satellite attains the escape velocity

Codes

Both A and R are individually true and R is the correct explanation of A

Both A and R are individually true and R is not the correct explanation of A

A is true but R is false

A is false but R is true

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Explanation:

2nd statement is incorrect.
Earth rotates from west to east in anti clockwise direction.
The surface velocity of rotation varies from point to point on the Earth. The velocity gradually reduces as we move to the poles and it is practically zero there. A satellite launched from the sites near the equator towards the east direction will get an initial boost equal to the velocity of Earth surface. This is similar to an athlete circling round and round before throwing a discus or a shot put.