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In order to find the Net forces, you need to know the X, Y and Z component of the object since their vectors(unit of distance and direction) are used to calculate the magnitude and direction of the object.... for example, if an object moves 3m in the X-axis and 4m in the Y-axis, then the net distance is 5m with an angel of tan(@)=4/3...

Thus we know the distance and direction of the object...

This can also be used for velocity (m/s), accelerations(m/s^2), and jerk (m/s^3)...

note, that an object will always have a Y component of 9.81m/s^2 (gravity)...

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Q: When finding net force why must you know the directions of the forces acting on an object?
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Is it possible for an object to not be in motion and still have forces acting on it?

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