5. The figure shows two masses M and m suspended from a rigid ceiling by springs of constant K1 and K2, where K1 is the spring constant of upper spring and K2 is the spring constant of lower spring. M Fo cos ot m a. If the mass M is subjected to a driving force Fo cos(wt) in the downward direction. Write the equation of motion for both masses. b. Assuming solutions of the form x1 = A cos(wt) and x2 = B cos(wt). Find A and B. c. For w = K1 V M K2 show that the amplitude of vibration of mass M will be zero if K1

5. The figure shows two masses M and m suspended from a rigid ceiling by springs of constant K1 and K2, where K1 is the spring constant of upper spring and K2 is the spring constant of lower spring. M Fo cos ot m a. If the mass M is subjected to a driving force Fo cos(wt) in the downward direction. Write the equation of motion for both masses. b. Assuming solutions of the form x1 = A cos(wt) and x2 = B cos(wt). Find A and B. c. For w = K1 V M K2 show that the amplitude of vibration of mass M will be zero if K1