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20 June, 18:37

Why does a ball accelerate as it rolls down a hill?

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Answers (2)
  1. 20 June, 18:56
    0
    Because there is a 'net force' on it. That means that all the different

    forces on it do NOT all cancel out. Whenever there is a net force on

    an object ... not zero force ... the object accelerates. (That means that

    either its speed or its direction changes.) We've known this for about

    300 years now.

    The main force on the ball is the force of gravity.
  2. 20 June, 18:58
    0
    The ball accelerates because of gravity.
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