SHM on a rotating disc

This is most likely not relevant for jee (as told by our teacher), but how would one begin to approach this? [*One image didn't get attached so its posted below]
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iTeachChem Helper
@Gyro Gearloose
iTeachChem Helper
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.
SirLancelotDuLac
SirLancelotDuLacOP5mo ago
*This is part of the question
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Opt
Opt5mo ago
Are length, masses, radius not given or taken as arbitrary constants?
SirLancelotDuLac
SirLancelotDuLacOP5mo ago
They are given to be l,m and a respectively.
Opt
Opt5mo ago
a is the radius too? So the rod is fixed at the edge of the disk?
SirLancelotDuLac
SirLancelotDuLacOP5mo ago
Wait, Imma check again. It was given in the options and the options sadly aren't displayed ;_;
Opt
Opt5mo ago
Ah
SirLancelotDuLac
SirLancelotDuLacOP5mo ago
Okay, my bad. The mass and length are l and m, and ig the radius is not given. Also, they didn't specify whether to account for friction or not. But judging by the fact radius is not required, I'm assuming it's frictionless.
iTeachChem
iTeachChem4mo ago
we good?
SirLancelotDuLac
SirLancelotDuLacOP4mo ago
Yep. +solved @Opt
iTeachChem Helper
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