14. The position of a 0.64-kg mass undergoing simple harmonic motion is given by x = (0.160 m) cos (At 16). What is its position at t = 5.0 s? a. 0.160 m b. 0.159 m c. 0.113 m d. 0.089 m

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.