Most Important Selected Qs for JEE AdvancedPhysicsRotational Motion
The disc of radius r is confined to roll without slipping at A and B . If the plates have the velocities shown, then
Options
- Alinear velocity v _ o = v
- Bangular velocity of disc is 3 v 2 r
- Cangular velocity of disc is 2 v r
- DNone of these
Correct answer
C. angular velocity of disc is 2 v r
Step-by-step solution
aligned & v_A= ₀ R-v₀=v & ₀ R-v₀=v ... (i) & v_B= ₀ R+v₀=3 v ... (ii) aligned from equation (i) & (ii) 2 ₀ R=4 ~V ₀ R =2 v ₀= 2 v R from (1) v₀=v