Pls solve the following question by energy method A plank

Last updated: 6/24/2023

Pls solve the following question by energy method A plank having mass M rests on the two identical spherical balls of mass m and radius R The plank is connected to springs and further these springs are connected to the walls as shown in figure Assuming the pure rolling of the spheres and no slipping will occur between plank and spheres 4 K A The angular frequency of small oscillation of the plank will be K k 7 10 M m K k 3 M m OR B The angular frequency of small oscillation of the plank will be 1 C The frequency of oscillation will be f 2 M D The time period of oscillation will be T 2 k K K 7 m 10 K k 7 M m 10