A rocket is launched from the surface of the earth. If the radius of the...

WAEC 1996

A rocket is launched from the surface of the earth. If the radius of the earth is 6.4 x 10⁶m and the acceleration of free fall due to gravity is 1Oms^-1 calculate the escape velocity of the rocket.

A. 2.53 x 10⁴ms^-1
B. 1.13 x 10⁴ms
C. 8.00 x 10³ms^-1
D. 4.23 x 10³ms^-1
E. 6.41 x 10⁴ms^-1

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Correct Answer: Option B

Explanation

V = √2gR
V = √2 x 10 x 6.4 x 10²
1.13 x 10⁴ms

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A rocket is launched from the surface of the earth. If the radius of the...

Correct Answer: Option B

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