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Physics

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When you lift a ball with a force of 82N, the ball accelerates upward with an acceleration of a. If you lift with a force of 92N, the balls acceleration is 2*a.
Find the weight of the ball, and the acceleration a.

I know that
82 = ma +mg
92 = m2a + mg

That logic is correct right? just don't know how to figure out m or a :(

  • Physics - ,

    subtract the first equation from the second.

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