(Solved):   b) The period of vibration of the system shown in Figure Q1(b) is observed to be \( 0.8 \m ...

 

b) The period of vibration of the system shown in Figure Q1(b) is observed to be \( 0.8 \mathrm{~s} \). If block \( \mathrm{A} \) is removed, the period is observed to be \( 0.7 \mathrm{~s} \). i. Determine the mass of platform \( \mathrm{C} \) and equivalence of spring stiffness, \( K_{e q} \). ii. Analyse the period of vibration when both blocks \( A \) and \( B \) have been removed.