finding.4ever asked:
A railroad car of ams m is moving at speed v when it collides with a second railroad car of mas M which is at rest. The two cars lock together instantaneously and move along the track.
A railroad car of ams m is moving at speed v when it collides with a second railroad car of mas M which is at rest. The two cars lock together instantaneously and move along the track.
What is the speeed of the cars immediatly after the collision?
How would you find it?
