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A car moving with 30 m/s collides head on with a stationary car. The cars...

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Physics

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A car moving with 30 m/s collides head on with a stationary car. The cars stick together after the collision. Bon cars have mass 1,000 kg.a) What is the speed of the cars after the collision.b) Compare the kinetic energy of the two cars before and after the collision. How much kinetic energy is lost in the collision?c) Will the amount of kinetic energy lost be different if both cars travel with 15 m/s towards each other and then collide head on?

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