A geostationary satellite is revolving around the earth. To make it escape from gravitational field of the earth, its velocity must be increased by
21.3%
41.4%
75.3%
100%
A
75.3%
B
100%
C
41.4%
D
21.3%
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Solution
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Escape velocity, ve=√2⋅v0=1414v0 Fractional increase In orbital velocity Δvv =ve−v0v0=0.414 ∴ Percentage increase =41.4%
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