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)

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

waec 1993 physics

The correct answer is B. 1.13 x10⁴ms^-1

V = â2gr

= â2 x 10 x 6.4 x 10⁶

1.13 x 10⁴ms^-1

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