A ball has been tossed at time {{MATH_16}}. Suppose that {{MATH_17}} represents the position of a ball at time {{MATH_18}}. Recalling that the acceleration for {{MATH_19}} is only due to gravity, and knowing that the acceleration due to gravity is {{MATH_20}}, what is {{MATH_21}}? {{CMD_22}} {{MATH_23}} {{CMD_24}} {{CMD_25}}