Representing Motion

AP Physics 1· difficulty 2/5

t x

The position-vs-time graph shown represents an object whose acceleration is

  • A

    Negative (along −x)

    check_circle
  • B

    Cannot be determined

  • C

    Zero

  • D

    Positive (along +x)

Explanation

The slope (velocity) starts positive and decreases to negative — velocity is decreasing throughout, so acceleration is <strong>negative</strong>. The curve bends downward (concave down).

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