1. The problem statement, all variables and given/known data Two globular clusters A and B have cylindrical polar coordinates relative to the centre of the galaxy (r, z, Ø) given by A = (5,2,15°) and B= (4.6,65°), where the r and z coordinates are in kiloparsecs. 2. Relevant equations Find a and b the position vectors of each globular cluster relative to the centre of the galaxy, in terms of the cartesian unit vectors i, j, k. Hence find the vector displacement of B relative to A and the seperation in kiloparsecs of the globular clusters 3. The attempt at a solution Im lost and am not sure where to start.