Trains colliding: find thermal energy
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Trains colliding: find thermal energy

[From: ] [author: ] [Date: 11-11-26] [Hit: ]
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Two railroad cars, each of mass 6500 kg and traveling 98 km/h in opposite directions, collide head-on and come to rest. How much thermal energy is produced in this collision?

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Energy that each train brings to the collision is
1/2 mv^2
So twice that is
H = 2 (1/2) 6500 (98000)^2
H = 6500 (98000)^2
H = 62.4 x 10^12 J
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