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What would be the escape velocity from t...

What would be the escape velocity from the moon, it the mass of the moon is `7.4 xx 10^(22)` kg and its radius is 1740 km ?

A

`2.4 " ms"^(-1)`

B

`2.4 " kms"^(-1)`

C

`240 " kms"^(-1)`

D

`0.24 " kms"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
The escape velocity is given by
`v_(e)=sqrt((2GM)/(R))`
`v_(e)=sqrt((2xx6.67xx10^(-11)xx7.4xx10^(22))/(1740xx10^(3)))=24 " kms"^(-1)`.
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