Question 16 (1 point) Consider a pendulum ride at an amusement park. Its distance (in meters) from the center is defined as y = COS () where t is time in seconds. The acceleration of the pendulum ride at 2.28 seconds is Oal -1 2.28 2 O b) -4 cos (228 ) O c) -} sin (329 ) O d) Isin (2,28 ) Oe) None of the aboveQuestion 15 (1 point) The second derivative of f(x) = 20" + 4x-+ 6 is Oa) 2 +6 Obj 2 2 + 8 Ode+8 Od 2 + 81 Oe) None of the above