Posted by **lonia** on Friday, April 26, 2013 at 11:27am.

(a)what is the magnitude of the gravitational force of the earth on a surveillance satellite of mass 1040kg that is in a grazing circular orbit 100 km above the surface of the earth.

(b)find the magnitude of the acceleration of the satellite in such a grazing orbit.

(c)determine the speed of the satellite.

take the mass and radius of the earth as 5980000000000000000000000 kg and 6370000m respectively

- physics for physical science -
**MsyteryWoman**, Friday, April 26, 2013 at 2:40pm
The gravitational constant

G =6.67•10⁻¹¹ N•m²/kg²,

h=100000 m

m=1040 kg

Earth’s mass is M = 5.98•10²⁴kg,

Earth’s radius is R = 6.37 •10⁶ m.

(a) F =G•m •M/(R+h)²

(b) a= G• M/(R+h)²

(c) mv²/(R+h) = G•m •M/(R+h)²

v=sqrt (G•M/(R+h))

- physics for physical science -
**kelly**, Sunday, April 28, 2013 at 7:12pm
2.232667747500

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