As a toy car moves along a level track, coins are placed beside the car’s position on the track every...

As a toy car moves along a level track, coins are placed beside the car’s position on the track every second. The locations of the coins are shown in the diagram. Which of the following claims about the acceleration of the car is correct?

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The acceleration is zero because only the position is changing, while acceleration is the change in the velocity.
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The acceleration is not constant because the spacings between successive coins increase and then decrease.
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The acceleration is not constant because the spacings between the coins are not all the same.
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The acceleration is zero because the spacing between the last two coins is the same as the spacing between the first two coins