Determine the weight and cost of prepreg required to produce a hollow composite tube (outside…

Determine the weight and cost of prepreg required to produce
a hollow composite tube (outside diameter = 50 mm, wall thickness = 5 mm, and
length ¼ 4 m) if it contains 60 vol = AS-4 carbon fibers (at $60=kg) in an
epoxy matrix (at $8=kg). The tube is manufactured by wrapping the prepreg
around a mandrel, and the cost of prepregging is $70=kg.