A hollow steel shaft 12 feet long has an outside diameter of 16in. the inside diameter is 9 inches. What is the weight of this shaft if the steel weighs 0.29 lbs per cubic inch?
Let the length of the shaft be L and its outside and inside diameters are D and d respectively.
The volume of a cylinder is given by
The inner and outer diameter of a cylindrical shaft is given, the weight is calculated.