Hollow Disk D D D D 8 J M D D 16 Jy J M 3 38 Derive The Equation For The Rotational Inertia Of A Hol 1 (11.08 KiB) Viewed 30 times
Hollow disk D d D² + d² 8 J₁ = m² D² + d² 16 Jy = J₂ = m ²
3.38 Derive the equation for the rotational inertia of a hollow disk as shown on page 356 of Appendix B. Prove that the sign is actually + instead of -. The way to do it is to subtract the moment of inertia of the hole with diameter d from the inertia of the larger disk of diameter D. Consider that the remaining material is homogeneous and of constant density.
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!