Tuesday

March 31, 2015

March 31, 2015

Posted by **mymi** on Sunday, October 30, 2011 at 9:06pm.

that of the Earth.

(a) At what point, on a line between the Earth and the Moon, is the gravitational force exerted on an object by the Earth exactly balanced by the gravitational force exerted on the object by the Moon? (The distance between the Earth and the Moon is 3.844*10^5 km.)

345994.5 km is correct answer.

(b) Is this point one of stable or unstable equilibrium?

Unstable is corrct answer.

(c) Calculate the ratio of the force of gravity due to the Sun, acting on an object at this point, to the force of gravity due to Earth and, separately, to the force of gravity due to the Moon.

FSun/FEarth

= ???

FSun/ FMoon

= ???

Please help me on part c.

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