k 3 ces Problem 11.004 - Railroad car NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A loaded railroad car is rolling at a constant velocity when it couples with a spring and dashpot bumper system. After the coupling, the motion of the car is defined by the relation x = 60e-4.8t sin16t, where x and tare expressed in millimeters and seconds, respectively. Problem 11.004.b Railroad car Determine the position, velocity, and acceleration of the railroad car when t = 0.5 s. The position, velocity, and acceleration of the railroad car when t= 0.5 s are respectively. mm, 10.77 mm/s, and mm/s