55,000J of work is done to move a rock 25m. How much force was applied?
First, recall the definition of work. The work done by a constant force is equal to the force multiplied by a displacement
If the work done was 55,000 Joules, and the displacement traversed was 25 meters, then all you need to do is substitute into the equation:
Divide both sides by 25 meters to solve for
Since the Joule is defined as Newtons multiplied by meters, the meters will cancel off, and our answer will be: