What is the escape velocity from the surface of the earth of radius R and density ρ ?
2R√2πρG3
2√2πρG3
2π√Rg
√2πGρR2
A
2π√Rg
B
2√2πρG3
C
2R√2πρG3
D
√2πGρR2
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Solution
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Escape speed is given by ve=√2GMR
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