|Mar24-11, 06:52 PM||#1|
Gauss's Law and Gravitation
1. The problem statement, all variables and given/known data
Calculate the gravitational potential due to a thin rod of length l and mass M at a distance R from the center of the rod and in a direction perp. to the rod.
2. Relevant equations
integral form of Gauss's law wrt gravitation
3. The attempt at a solution
Can I use Gauss's law here i.e. solve for the gravitational field vector and integrate it to get gravitational potential? If not, why?
I tried but I don't get the same answer as with direct integration.
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