Question: Solve Prob. 18.5, assuming that the solid rectangular parallelepiped has been replaced by a hollow one consisting of six thin metal plates welded together. Problem

Solve Prob. 18.5, assuming that the solid rectangular parallelepiped has been replaced by a hollow one consisting of six thin metal plates welded together. Problem 18.5: A solid rectangular parallelepiped of mass m has a square base of side a and a length 2a. Knowing that it rotates at the constant rate ω about its diagonal AC?? and that its rotation is observed from A as counterclockwise, determine

(a) The magnitude of the angular momentum HG of the parallelepiped about its mass center G,

(b) The angle that HG forms with the diagonal AC'.

G P

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