Most Important Selected Qs for JEE AdvancedPhysicsRotational Motion
A disc of mass m and radius R is rolling without slipping on a horizontal fixed rough surface with tramlational velocity v as shown in the figure. Here L _o, L _p and k₀, k_p represents the angular momentum and kinetic energy about point O and P respectively: Match the physical quantities from List I with those in List II and select the correct answer using the code given below the lists.
Options
- Aarray lllll 4 & 2 & 1 & 3 array
- Barray llll 2 & 4 & 1 & 3 array
- Carray llll 3 & 1 & 2 & 4 array
- Darray llll 4 & 1 & 2 & 3 array
Correct answer
C. array llll 3 & 1 & 2 & 4 array
Step-by-step solution
L _ any point = L _ cm , that point + L _ about CM ( P ) 3 2 mvr (- K )( Q ) (1) K = 1 2 m v_ cm ^2+ 1 2 I _ cm ^2 ( R ) 3 4 mv ^2