Fill in the Blanks 263-testOnline version 263-test by Farhad Key 1 equal by more opposite The overall result of two or forces acting on an object is called the resultant force . The resultant of two forces is a single force , which has the same effect as the two forces combined . If two forces pull an object in directions , the size of the resultant can be found subtracting one force form the other . If the forces are , they balance each other .