1. For the spring-mass system shown in Figure P16–6, determine the mass displacement, velocity, and.

1. For the spring-magnitude order shown in Figure P16–6, indicate the magnitude misinterpretation, celerity, and acceleration for five spell steps using (a) the convenient separation order, (b) Newmark’s spell integration order, and (c) Wilson’s order. Let k = 1200 lb/ft and m = 2 slugs.


2. For the bar shown in Figure P16–7, indicate the nodal displacements, velocities, and accelerations for five spell steps using two finite elements. Let E = 30  106 psi, r = 0:00073 lb-s2/in4, A = 1 in2, and L = 100 in.