I've got a question on thermal energy:(adsbygoogle = window.adsbygoogle || []).push({});

Two railroad cars, each of mass 6500 kg and traveling 86 km/h, collide head-on and come to rest. How much thermal energy is produced in this collision?

Converted 86 km/h to m/s = 2.389 m/s

I assumed that KE converted all into thermal energy:

KE = 1/2 mv^2, but it doesn't turn out right.

Thank you beforehand for any help!

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# Thermal Energy

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