Question

Question 4 Not yet graded / 20 pts Rods AC and BC are connected together by a pin joint at C as shown. Both rods are 1.0 m long with a mass of 10 kg. They are released from rest in the position shown. What are their angular velocities when the separation between A and Bis 1.6 m? What are their angular velocities when the separation between A and B is 2.0 m? 1.2 m

Sorry to ask for another solution but it has been really difficult for me to comprehend the solutions. Can someone please help with another solution? Thank you so much!

Answer 1

Brim m2 lokg meling mloky B malovy Doo, le moloko Ad O2 D 1.om - 1-2 m olm Position 1 Paortion 2 is no external both nod in sition System is relaxd from rest position and there & force sot, energy of system remain conserve, se So we can apply conservation of energy method position 1 and Position 2 Finding hinght of centre of gravity of both Posision 2 - CD = JAC? - A2 20.8m. co- AC²ADR Centre of Gravity will be - 512_0.82 - 0.6m at half of CD = 0. Am Now centre of gravity will be from ban aut half of col = 0.6 - 0.3m Passion To kom? 11 3 c Moment of Inentia a Rods about pont car - Applying conservation of energy blu Porition 1 & Position 2 @ 2x M g h +2+2 I 2 = 2.4gh'+ 2x 1 I w? 2x 10 x 9.81% 0.4 to = 2x10x9.8180.3 + 2 x 2 x After sohning wa 2.426 nad's Angulon velouty of Rods will be 2.426 nadls when sebration blo ARB iD 1.6m on