Answer :
To calculate the work done when the bulldozer pushed the rock with a force of 5000 N at a constant speed, you can use the formula for work:
Work = Force x Distance x cos(θ)
In this case, the force applied is 5000 N. However, the distance the rock was moved is not provided in the question. Without knowing the distance, we cannot calculate the work done.
Therefore, to determine the work done, we would need the distance over which the force of 5000 N was applied. If the distance is provided, you can plug in the values into the formula to find the work done.