The distance between centre of the earth and moon is $384000\, km$. If the mass of the earth is $6 \times {10^{24}}kg$ and $G = 6.66 \times {10^{ - 11}}\,N{m^2}/k{g^2}$. The speed of the moon is nearly......... $km/sec$
The distance between centre of the earth and moon is $384000\, km$. If the mass of the earth is $6 \times {10^{24}}kg$ and $G = 6.66 \times {10^{ - 11}}\,N{m^2}/k{g^2}$. The speed of the moon is nearly......... $km/sec$
$1$
$4$
$8$
$11.2$
The distance between centre of the earth and moon is $384000\, km$. If the mass of the earth is $6 \times {10^{24}}kg$ and $G = 6.66 \times {10^{ - 11}}\,N{m^2}/k{g^2}$. The speed of the moon is nearly......... $km/sec$
$v = \sqrt {\frac{{GM}}{r}} $
$= \sqrt {\frac{{6.67 \times {{10}^{ - 11}} \times 6 \times {{10}^{24}}}}{{384000 \times {{10}^3}}}} $
$= 1\,km/s$
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