Answered: u (x,t) = g(x+V₁t)= F(x/V+t) V₁ =√E/p…

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5. A semi-infinite rod as shown in the Figure below (Elastic Modulus, E = 170 MPa and Unit Weight = 18 kN/m³) is excited at the right free end by a pulse of constant amplitude 0.01 m for a duration of 15 sec. (a) Determine the rod wave velocity, shear wave velocity, and dilatational wave velocity. (b) Find the displacement at x = -5 km at 20 seconds and 50 seconds.

u (x,t) =
g(x+V₁t)=
F(x/V+t)
V₁ =√E/p
✈u (0, t)

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u (x,t) = g(x+V₁t)= F(x/V+t) V₁ =√E/p ✈u (0, t)