Calculate the escape velocity of a satellite launched from the earth’s surface (Take g as 10ms-2 and the radius of the earth as 6.4 x 106m)
A
8.00 x 106ms-1
B
1.13 x104ms-1
C
3.58x102ms-1
D
5.59 x10-2ms-1
E
3.95x10-2ms-1
Verified Correct Answer: B.
Physical Principles & Numerical Solution
V = \sqrt2gr
= \sqrt2 x 10 x 6.4 x 106
1.13 x 104ms-1
Source: Myschool Past Questions Archive (Record #25025)