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The escape velocity from the surface of ...

The escape velocity from the surface of the earth is (where `R_(E)` is the radius of the earth )

A

`sqrt(2gR_(E))`

B

`sqrt(gR_(E))`

C

`2sqrt(gR_(E))`

D

`sqrt(3gR_(E))`

Text Solution

Verified by Experts

The correct Answer is:
A
(a) The escape velocity from the surface of the earth is
`v_(e)=sqrt((2GM_(E))/(R_(E)))=sqrt(2gR_(E)) ( : . G=(GM_(E))/(R_(E)^(2)))`
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