1 9 . 9 . E . A person of mass = 6 5 rides a motorcycle at a constant speed of = 1 4 inside a spherical caged track of radius = 1 5 . a . Vectors that point radially inward have what sign for their radial component? What if they point radially outward? b . Compute the apparent weight of the rider ( i . e . , the magnitude of the normal force on the person due to the motorcycle seat ) at point where the central angle measures 4 9 . As part of your work draw a force diagram on the rider