Problem Set #3 Questions

Hi. I have done all of problem set 3 except for question 1. I am having trouble calculating the matric potential. Could you please help me do that for question 1A.

Thanks

I assume that you are referring to problem set no.2 (not no. 3), if yes then for question 1a, you need to know matric potential and gravitational potential. This is very similar to the example shown during lecture on Jan 24, 2014.