A solid sphere has a uniform density, a mass of 17 kg and a radius of 2.2 m.(adsbygoogle = window.adsbygoogle || []).push({});

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a) What is the force due to gravity from the sphere on a very small object of mass 21 grams located 1.1 m from its center?

b) What is the force due to gravity from the sphere on a very small object of mass 21 grams located 3.3 m from its center?

How do I start this problem? I know that F=G*m1*m2/R

and Mass inside a shell= density*(4/3)pi*r^3, but it just confuses me more.

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# Homework Help: Gravitation: Force inside a sphere

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