very gud problem in shm.......

IIT JEE 2015 Answers › Mechanics questions › very gud problem in shm.......

A uniform rod is placed on 2 spinning wheels .The axes of wheel are separated by 2l . The coeff of friction b/w rod and wheel is Î¼.Find peiod of small oscillations of rod.

#Physics #Mechanics

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6 Answers

1

spiderman ·2009-02-05 11:12:41

2Î √ L/ Î¼Mg
is this the answer?

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24

eureka123 ·2009-02-05 11:14:19

yup...............can u post the soln..????????

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Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-02-05 11:50:40

irodov sum
takes 2 normal rxtions
take frictoion in proper direction
balnce d torques
balnce translational motion
u'll get d answer

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24

eureka123 ·2009-02-05 20:58:11

is it in irodov???????????????i didnt knew................

anyways thanx....

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3

iitimcomin ·2009-02-16 08:29:36

let us displace rod by x!!!!!!!!!!!!!!!!! Î¼(N2-N1)=F.............(1) N1+N2=Mg.................

(2) N1(2l+x/2)=N2(2l-x/2).....................(3)

solwing we get T = 2Î âˆšl/Î¼g ....................

spiderman ur ans. is rong there is no term M...it is also dimensionally incorrect......y is it pink posted??????

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62

Lokesh Verma ·2009-02-17 03:06:32

good work dude...

sorry i din see the M in spider's solution :)

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