void execute() {
    for (u32 f = 0; f < numForces; f++)
    {
      u32 length = end - start;
      PhysicalObject* arr = objects + start;
      std::vector<bool> tmp(length);
      bool* tmpArr = tmp.data();
      forces[f].affected(arr, length, tmpArr);
      for(u32 index = 0; index < length; index++)
        if (tmp[index])
          forces[f].apply(arr[index]);
    }
  }

bool* tmpArr = tmp.data();