Suppose a person travels at a rate of 3 ft/hr toward the foot of a street lamp pole 60 ft high. The height of the person is 5 ft. At what rate is the distance from the head of the person to the top of the street lamp changing when 81 ft from the bottom of the street lamp? Note: Round your answer to 4 decimal places. O 2.3398 ft/hr O 2.4107 ft/hr O 0.4029 ft/hr O 2.4819 ft/hr O -0.4029 ft/hr O o ft/hr O -2 ft/hr none of the other answers