2.13 A railroad car of mass m is attached to a stop in a railroad yard....
A railroad car of mass m is attached to a stop in a railroad yard. The stop consists of four identical metal rods of length L, radius R and elastic modulus E that are arranged symmetrically and are fixed to a rigid wall at one end and welded to a rigid plate at the other. The plate is hooked to the stationary railroad car as shown. In a docking maneuver, a second car of mass m approaches the first at...
Required information In the railroad freight yard, an empty freight car of mass m rolls along a straight level track at 1.20 m/s and collides with an initially stationary, fully loaded boxcar of mass 5.70m. The two cars couple together on collision. What is the speed of the two cars after the collision? m/s