A moving toy car hits a wall and stops. What caused the toy car to stop?

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A Friction inside the car
B Force applied by the wall
C Force of gravity
D The car’s engine stopping

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Answer: B. Force applied by the wall

When the car hits the wall, the wall pushes back on the car with a force opposite to its motion. This force stops the car. A force can change the state of motion of an object.

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A moving toy car hits a wall and stops. What caused the toy car to stop?

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