Question

An aluminum cylinder of radius 0.10 meter and length 1.0 meter is fully submerged in fresh water and supported by a vertical string attached to one end. The cylinder is motionless and vertically oriented. The density of aluminum is 2700 kg/m3 . a) Find the "net" force exerted by the water on the cylinder. (First consider top, bottom, and curved sides separately.) b) Find the tension in the supporting string. c) If the cylinder were gold instead of aluminum, would your answers to parts a and b be bigger, smaller, or the same?

Answer 1