4. A conical pendulum swings in a circle, as shown. Show that the form of the equation relating the angle that the string makes with the vertical to the speed of the bob is identical to the equation for the banking of curves. (i.e. tan0 = v2/rg) L = length of pendulum = angle with vertical FT F- = tension in the string mg = weight of bob (i.e. F,) r = radius of circular path h = height of object from ceiling