Successive maximum displacements of a spring-mass-dashpot system (shown by Fig. 19.10 of "Vector Mechanics for Engineers: Statics and Dynamics" 8th edition) are 1.25, 0.75, and 0.45in. Knowing that W=36 Ibs and k=175 Ib/ft, determine (a) the damping factor c/cc, and (b) the value of the coefficient of viscous damping c. (Hint: see problems 19.128 and 19.129)