- The Muss And Length Of The Bar Shown In Fig 2 Are M 4 Kg And L 1 2 M The Spring Constant Is K 180 N M Neglect All Fric 1 (21.51 KiB) Viewed 37 times
The muss and length of the bar shown in fig.2 are m=4 kg and l=1.2 m. The spring constant is k=180 N/m. Neglect all frictional forces, and the muse of the spring. The bar is released from rest in the prition θ=10∘, 1. Derive an expresmion for the kinetic energy of the bar as a function of its angular velocity w when θ=20∘⋅(0.75pts) 2. Using the work energy principle, or conservation of mechanical energy principle, find the angular velocity of the har when it has fallen to θ=20∘⋅(2.25μts)