clc ; clear ; m=100*10^-3 //flat disc mass in kg t=60 //time period of oscillation in sec omega=10 //frequency in Hz //Calculation damp_omega=log(2)/60 //amplitude of damped oscillator for A/C = 1/2 in rad/s c= 2*m*damp_omega tau= 1/damp_omega mprintf("Resistive force = %0.2e newton-s/meter \n",c) mprintf("Relaxation time = %2.2f s",tau) //The answer provided in the textbook is wrong.