A train wagon with speed v and mass m collides head-on and attaches to two conjoined wagons initially at rest on the rai
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A train wagon with speed v and mass m collides head-on and attaches to two conjoined wagons initially at rest on the rai
A train wagon with speed v and mass m collides head-on andattaches to two conjoined wagons initially at rest on the railwayto Busan. How much mechanical energy is lost in the process?