1.

This question has two parts. First, answer Part A. Then, answer Part B. Part A The position of an object bobbing up and down on a spring is given by the function s = 5 sin(3t + 2) cm/s, where s is in cm and t is in seconds. Which of the following best represents the object's velocity at time t = 2 s? O A. -14.4 cm/s O B. -2.2 cm/s O C. 2.2 cm/s O D. 4.8 cm/s O E. 14.4 cm/sPart B What is the object's acceleration at time t = 2 s? O A. -44.5 cm/s O B. -43.2 cm/s O C. -14.8 cm/s O D. 6.5 cm/s2 O E. 12.6 cm/s