MHT CET202314 May 2023Morning ShiftPhysicsOscillationsActual
A thin uniform rod of mass ' m ' and length ' l ' is suspended from one end which can oscillate in a vertical plane about the point of intersection. It is pulled to one side and then released. It passes through the equilibrium position with angular speed ' '. The kinetic energy while passing through mean position is
Options
- Am l^2 ^2
- Bm l^2 ^2 4
- Cm l^2 ^2 6
- Dm l^2 ^2 12
Correct answer
C. m l^2 ^2 6
Step-by-step solution
The kinetic energy of the rod while passing through the mean position will be, aligned K.E. & = 1 2 I ^2 & = 1 2 m l^2 3 ^2= m l^2 ^2 6 aligned