Recent content by General-Simon

ok, Thanks, I already solved it. considering the θ and φ also as the function of t, but the unit vectors do not.

Here I am doing a spherical pendulum problem, and i was asked to represent the unit vectors of spherical coor in terms of Cartesian coor, which i have already solved: r=sinθcosφ i + sinθsinφ j + cosθ k θ=cosθcosφ i + cosθsinφ j - sinθ k φ= -sinφ i + cosφ j where φ is the angle on the X-Y...