1. The problem statement, all variables and given/known data If the two ends of a rope in equilibrium are pulled with forces of equal magnitude and opposite direction, why is the total tension in the *not* zero? 2. Relevant equations 3. The attempt at a solution If there are two vectors with same magnitude and opposite direction their sum is zero. So, at the middle point that has to be in equilibrium. Are they asking what the sum is at the end of one side of the rope? Should I be taking the absolute value of each vector and adding them to equal a non zero number?