Final answer:
The crate was moved 17 meters, as determined by the formula for work done, which is the product of force and distance.
Step-by-step explanation:
If 68 Joules of work were necessary to move a 4 Newton crate, the distance the crate was moved can be calculated using the work-energy principle. The formula for work done (W) is W = Force (F) × distance (d), where distance is in meters. Rearranging the formula to solve for distance gives us d = W / F.
Therefore, by substituting the given values into the equation, we have d = 68 J / 4 N, which equals 17 meters. This calculation shows that the crate was moved 17 meters. No friction or other forces were mentioned, so these were not factored into the calculation.