The orbital velocity of satellite is
vorb=RGM
The escape velocity is
vesc=R2GM
Hence, the additional velocity required is
Δv=vesc−vorb=R2GM−RGM=(2−1)RGM
=(2−1)gR
=(2−1)10×6400×103
=8(2−1)kms−1
A space ship of mass 2×104kg is launched into a circular orbit close to the earth surface. The additional velocity to be imparted to the space ship in the orbit to overcome the gravitational pull will be (if g=10ms−2 and radius of earth =6400km ):
Held on 11 Apr 2023 · Verified 6 Jul 2026.
11.2(2−1)kms−1
8(2−1)kms−1
7.9(2−1)kms−1
7.4(2−1)kms−1
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