5- Consider the system shown in Prac 2 (on-campus students) OR intensive week activity (online students) which is vibrating with sinusoidal input of sin (38.88t) N. The damping coefficient of the system is experimentally calculated to be 0.5 N. s/m. We locate mass m along the beam as tuned-mass-damper (TMD) at distance L2 from origin to deal with the vibration of m = 0.15 kg, which is located at L = 0.25 m from origin. Investigate how much, percentage of the maximum displacement of m could be reduced during the steady state vibration and answer the following questions as per last digit of your student ID. The modulus of elasticity of the steel ruler is E = 210 GPa and width and thickness of the ruler are 20 mm and 1.5 mm, respectively. mi L1 L2 m2