Disc is at rest on rough horizontal plane,mass=M.The disc is displaced slightly in horizontal direction.Friction is large enough that slipping ceases.Time period of oscillation?

Question

dls · Answer

@Mashy @yrelhan4 why do i need to tag you people again n again :/ come on ur own!!!

dls · Answer

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yrelhan4 · Answer

ruk jaa. :/

dls · Answer

$$\LARGE \frac{qQ}{4 \pi \epsilon_o r^2} \times R = \frac{3}{2} MR^2 \times \frac{a}{R}$$
is my torque equation about centre of mass..maybe :/

dls · Answer

@Mashy ?

anonymous · Answer

wow thats intense.. :O.. whats i Q? :O

dls · Answer

iQ?

dls · Answer

Q is a fixed charge outside and q is the charge on disc

anonymous · Answer

whats is q ?? in your equation?!

dls · Answer

^^

anonymous · Answer

wtf?!? there are charges involved as welL!? :O

dls · Answer

lol..how is it supposed to "oscillate"

anonymous · Answer

i thought due to gravity.. 
wait now that think of it.. thats not possible is it :P

dls · Answer

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