What is the speed of the four cars

Reference no: EM13534137

Three identical boxcars are coupled together and are moving at a constant speed of 28.0 on a level, frictionless track. They collide with another identical boxcar that is initially at rest and couple to it, so that the four cars roll on as a unit. Friction is small enough to be neglected.

Part A What is the speed of the four cars?

Part B What percentage of the kinetic energy of the boxcars is dissipated in the collision?

Part C What happened to this energy?

Reference no: EM13534137

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