NEET2017PhysicsOscillationsActual
A solid cylinder is attached to a horizontal massless spring as shown in figure. If the cylinder rolls without slipping, the time period of oscillation of the cylinder is
Options
- A2 x g
- B2 2 M 3 K
- C2 3 M 8 K
- D2 3 M 2 K
Correct answer
C. 2 3 M 8 K
Step-by-step solution
Let x be the extension in the spring, Then, x=2 R Torque acting on the cylinder about point of contact, T=F 2 R=-K x(2 R)=-4 R^2 K T=2 I K e =2 3 2 M R^2 4 R^2 K =2 3 M 8 K