Two metal disks, one with radius R 1 = 2.49 cm and mass M 1 = 0.780 kg and the o
ID: 1980907 • Letter: T
Question
Two metal disks, one with radius R1 = 2.49 cm and mass M1 = 0.780 kg and the other with radius R2 = 5.02 cm and mass M2 = 1.56 kg , are welded together and mounted on a frictionless axis through their common center.
A. What is the total moment of inertia of the two disks?
C. Repeat the calculation of part B, this time with the string wrapped around the edge of the larger disk.
Two metal disks, one with radius R1 = 2.49 cm and mass M1 = 0.780 kg and the other with radius R2 = 5.02 cm and mass M2 = 1.56 kg , are welded together and mounted on a frictionless axis through their common center. A. What is the total moment of inertia of the two disks? B. A light string is wrapped around the edge of the smaller disk, and a 1.50-kg block, suspended from the free end of the string. If the block is released from rest at a distance of 2.09 above the floor, what is its speed just before it strikes the floor? C. Repeat the calculation of part B, this time with the string wrapped around the edge of the larger disk.Explanation / Answer
a similar question is solved below, but with different values. hope this helps you. Two metal disks, one with radius R1= 2.41 cm and mass M1 = 0.810 kg and the other with radius R2 = 5.07 cm and mass M2 = 1.62 kg , are welded together and mounted on a frictionless axis through their common center. A light string is wrapped around the edge of the smaller disk and a 1.45 kg block is suspended from the free end of the string. What is the magnitude of the downward acceleration of the block after it is released? Take the free fall acceleration to be 9.80 m/s^2 . I=(0.810*0.0241^2+1.62*0.0507^2)/2 0.00232 kg m^2 A FBD of the hanging mass 1.45*9.8-T=1.45*a where T is the tension A FBD of the disks T*0.0241=0.00232*a/0.0241 combine and solve for a T=4*a a=1.45*9.8/5.45 2.607 m/s^2
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.