A loaded railroad car weighing 30,000 lb is rolling at a constant Problems velocity v0 when it couples with a spring and dashpot bumper system (Fig. 1). The recorded displacement-time curve of the loaded railroad car after coupling is as shown (Fig. 2). Determine
(a) the damping constant,
(b) the spring constant.
![2016_1c65080e-809b-4424-838b-cb2a954f335f.png](https://secure.tutorsglobe.com/CMSImages/2016_1c65080e-809b-4424-838b-cb2a954f335f.png)
![1623_b72e2027-5f92-4cd0-b16c-be9f0710ebbd.png](https://secure.tutorsglobe.com/CMSImages/1623_b72e2027-5f92-4cd0-b16c-be9f0710ebbd.png)