A 155 kg satellite is orbiting on a circular orbit 5995 km above the Earth's surface. Determine the speed of the satellite. (The mass of the Earth is 5.97Ă—1024 kg, and the radius of the Earth is 6370 km.)

Respuesta :

Answer:[tex]5.67\times 10^{3} m/s[/tex]

Explanation:

Given

mass of satellite [tex]m=155 kg[/tex]

Satellite is orbiting 5995 km above Earth surface

mass of Earth [tex]M=5.97\times 10^{24} kg[/tex]

Radius of Earth [tex]R=6370 km[/tex]

here [tex]r=R+5995=6370+5995=12,365 km[/tex]

Gravitational Force will Provide the centripetal Force

[tex]\frac{GMm}{r^2}=\frac{mv^2}{r}[/tex]

[tex]v=\sqrt{\frac{GM}{r}}[/tex]

[tex]v=\sqrt{\frac{6.67\times 10^{-11}\times 5.97\times 10^{24}}{12365\times 10^{3}}}[/tex]

[tex]v=\sqrt{32.203\times 10^6}[/tex]

[tex]v=5.67\times 10^3m/s=5674.7 km/s[/tex]           Â