by JustcallmeEve on February 15th, 2009

JustcallmeEve

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Why is this statement wrong? "A rock is thrown straight into the air. At the peak its acceleration is zero." To me, at the peak it is neither speeding up, slowing down or turning, it's just hanging there. Therefore, zero acceleration...right?

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  • by anddeb on February 15th, 2009

    anddeb

    No, because it never stops moving.

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