The value of acceleration due to gravity at Earth’s surface is $9.8\, m\,s^{-2}$. The altitude above its surface at which the acceleration due to gravity decreases to $4.9\, m\,s^{-2}$, is close to: (Radius of earth $= 6.4\times10^6\, m$)
The value of acceleration due to gravity at Earth’s surface is $9.8\, m\,s^{-2}$. The altitude above its surface at which the acceleration due to gravity decreases to $4.9\, m\,s^{-2}$, is close to: (Radius of earth $= 6.4\times10^6\, m$)
- [JEE MAIN 2019]
- A
$6.4\times10^6\, m$
- B
$9.0\times10^6\, m$
- C
$2.6\times10^6\, m$
- D
$1.6\times10^6\, m$
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- [JEE MAIN 2017]
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