Forces

The above free body diagram, the forces are acting on a 3.90 kg object. The x-axis is tilted down from the horizontal by 48.1 degrees. The magnitudes of the three forces are given by:
Force F1: 28.0 N
Force F2: 94.0 N
Force F3: 35.0 N.
What is the magnitude of the acceleration of the object?

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