(a) an object of mass 0.2 kg is hung from a spring whose spring constant is 80 n/m and allowed to oscillate. the object is subject to a resistive force given by -bv, wherc u is the objects velocity in metres pcr second (i) if the damped frequency is 0.995 of the undamped frequcncy, what is the value of the damping constant b? (6) (ii) by what factor is the amplitude of the oscillation reduced after 4 complcte cycles?