In the scenario you describe, the truck is traveling at 100 miles per hour, which means the blue car must be traveling at 50 miles per hour (since the truck is going twice as fast). When the truck collides with the car and pushes it down the road, the truck maintains its speed at 100 miles per hour.
After the collision, the car is pushed by the truck, and since the truck is still moving, the car will start to move faster. The car will be moving at a speed closer to or equal to that of the truck, depending on the specifics of the collision and any friction or resistance involved.
Let's analyze the responses:
A. The car is moving at the same speed as the truck.
- This could be true after the collision if the truck continues to push the car, but it may not be immediately true at the moment of collision.
B. The car has less energy; the car and truck slow down.
- This is incorrect. The truck is still moving at the same speed, and it's pushing the car forward, which would not result in both slowing down.
C. The car has more energy and is moving faster than before.
- This is likely true after the collision since the truck is pushing the car. The kinetic energy of the car increases as it is brought to a higher speed.
D. The car has more energy; there is no change in the speed of the car.
- This is incorrect because although the car gains energy from being pushed by the truck, there will naturally be a change in the speed of the car as it accelerates.
Based on this analysis, the best response would be C. The car has more energy and is moving faster than before.
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