Solve the questions below. This is grade 12 functions so no calculas allowed.

18. When an angle rotates clockwise from its initial position, it has negative rotation. Determine a positive coterminal angle for each of the following. a) - d) - 97T 5 b) - e) - 117 6 3 c) -271 3 D-147 15 21 - 0 Centripetal acceleration occurs wherever motion is circular and constant. The instantaneous acceleration points toward the centre of the circular motion. The function a, = ro determines centripetal acceleration in m/s , where r is the radius of rotation in metres and @ is the angular velocity in rad/s