12. While riding in a car heading south, you hold an accelerometer in your hand, like the one below. The angle of the bead changes with the acceleration of the car. [6 marks] vertical + 09090408 050607080 80 4030 2010 0 10203040509 bead a) How must you hold the accelerometer so that it correctly measures acceleration? Explain. b) Describe what happens to the bead when the vehicle is at rest. c) Describe what happens to the bead when the vehicle is accelerating toward the south. d) Describe what happens to the bead when the vehicle is moving at a constant velocity. e) Describe what happens to the bead when the vehicle begins to slow down while moving toward the south