The force you must apply to lift an object varies directly with the object’s weight. You would need to apply 0.5 lbs of force to lifting an object that weighs 32 lbs. What is the constant of variation?

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min