physics

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a horizontal force of 290N is applied to a stationary wooden box in one direction, and a 800N horizontal force is applied in the opposite direction. What additional force is needed for the box to remain stationary?

  • physics -

    F + (800-290) = 0,
    F + 510 = 0,
    F = - 510N.

    F should be equal and opposite of the
    resultant of the other 2 forces.

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