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# Kinetic Energy

Energy is the currency of transformation. All systems remain the same unless energy is exchanged between one part and another. Learn here about the energy associated with movement.

An \(8\)-ton truck traveling at \(20\text{ m/s}\) hits a parked car of mass \(2000\text{ kg}\) from behind. If the collision is perfectly inelastic, what is the approximate total loss in kinetic energy?

Assume that the road is frictionless and ignore the deformation of the vehicles.

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