What is the relation between a shell and a solid sphere?

athrun200 · Jul 11, 2011

Homework Statement

Printed textbook problem 21 on a spherical shell of mass m' and radius r', giving the gravitational potential inside and outside the shell, then results for a solid sphere: force and potential inside and outside the earth, with a hint about the surface force mg.

Homework Equations

The Attempt at a Solution

What is the relation between a shell and a solid sphere?
Can you give me some hints?

zhermes · Jul 11, 2011

A solid sphere can be thought of as composed of an arbitrarily large number of smaller shells...
How could you 'add up' the effects of many smaller shells, to construct a sphere?

What is the relation between a shell and a solid sphere?

Homework Statement

Homework Equations

The Attempt at a Solution

Discussion

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