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A satellite revolves very near to the earth surface. Its speed should be around?

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in Engineering Physics I by (558k points)
A satellite revolves very near to the earth surface. Its speed should be around?

(a) 5km/s

(b) 8km/s

(c) 2km/s

(d) 11km/s

This question was addressed to me in homework.

The query is from Gravitational and Gravity topic in chapter Gravitation of Engineering Physics I

1 Answer

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Best answer
Right option is (b) 8km/s

The explanation is: Near the earth’s surface,

v0=√gR=7.2km/s

Approximately 8km/s.

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