4.24 *** An infinitely long, uniform rod of mass j per unit length is situated on the z axis. (a) Calculate the gravitat

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4 24 An Infinitely Long Uniform Rod Of Mass J Per Unit Length Is Situated On The Z Axis A Calculate The Gravitat 1 (18.26 KiB) Viewed 22 times

4.24 *** An infinitely long, uniform rod of mass j per unit length is situated on the z axis. (a) Calculate the gravitational force F on a point mass m at a distance p from the z axis. (The gravitational force between two point masses is given in Problem 4.21.) (b) Rewrite F in terms of the rectangular coordinates (x, y, z) of the point and verify that VF=0. (C) Show that V x F = 0 using the expression for 5 x F in cylindrical polar coordinates given inside the back cover. (d) Find the corresponding potential energy U.