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When you lift a bowling ball with a force of 69.3 N, the ball accelerates upward with an acceleration a. If you lift with a force of 77.2 N, the ball's acceleration is 2.00a. Calculate the weight of the bowling ball.
For this should I add both force together to find a?

  • physics -

    Use F=ma.

    69.3-mg = ma
    77.2-mg = 2ma

    Eliminate a from the equation and solve for m. g=acc.due to gravity = 9.8 m/s/s.

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