Final answer:
No, it is not possible to have masses with more than 100% when calculating the percent of energy conserved.
Step-by-step explanation:
When calculating the percent of energy conserved using the average velocities based on different hanging masses, it is not possible to have masses with more than 100%. The conservation of energy principle states that energy cannot be created or destroyed, only transferred or transformed. Therefore, the total energy before and after the interaction should be equal.