In the following question, four groups of three numbers are given. In each group the second and third number are related to the first numberby a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one.
_________ says that the marginal product of a factor input initially rises with its employment level. But after reaching a certain level of employment, it starts falling.
During the free fall of the object, the decrease in potential energy, at any point in its path, appears as an equal amount of increase in _________________.