Question

4. The spacecraft to travel the outer space must have
(a) maximum velocity of 22.4 km/s.
(b) maximum velocity of 11.2 km/s
(c) minimum velocity of 11.2 km/s
(d) minimum velocity of 22.4 km/s
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Answer 1

Answer:

(c) minimum velocity of 11.2 km/s

Explanation:

The minimum velocity with which a body must be projected up so as to enable it to just overcome the gravitational pull, is known as escape velocity.

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