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lifeofjessica: 1 year ago | Last edited at 12:36PM on 4/2/2012

A student is tackling a physics problem about two cars that collide. Before the collision, each car has a positive kinetic energy.

After the crash, the kinetic energy of each car was zero. Which statement is true about these cars?

The kinetic energy was likely converted into potential energy.

The kinetic energy was not conserved; it was transformed into other types of energy.

The two cars conserved momentum after the collision.

The mass of one car was probably twice the mass of the other car.

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Answer 1

JoeEnns123: 1 year ago

The statement that is true is; the two cars conserved momentum after the collision. This is because momentum is product of the mass and velocity of an object. Velocity represents movement and mass represents weight of the cars.

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lifeofjessica: 1 year ago

Okay so where is the answer to my question ?

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BadB: 1 year ago via iPhone

I think it's either the mass answer or the one where the kinetic energy is released/transformed Into different kinds of energy, (light)(sound)(heat) from the cars crashing making friction and so on.

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