Mechanics - Concept prob

1

mkagenius ·2009-01-23 11:15:27

u have not given values....
but the concept should b that it will accelerate from a to b(both rotationally and linearly)
and after that it will accelerate only linearly.calculate the values using this info.
was this useful.

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33

Abhishek Priyam ·2009-01-23 11:20:50

is it 5:1

or i am going to sleep amd reply tommorow.. :P

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24

eureka123 ·2009-01-23 11:22:03

yup........................soln to deta jaa.............

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Abhishek Priyam ·2009-01-23 11:23:40

okie... wait i am just typing that...

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Abhishek Priyam ·2009-01-23 11:28:37

â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆ

at B mgh/2=1/2mv²+(1/2)mr²/2Ï‰²=3/4mr²Ï‰²

v =Ï‰r

h is total ht of wedge...

now from B to C only trans KE will increase by mgh/2 and rot KE will be same so...

at C

Tran KE=1/2m(Ï‰r)²+mgh/2
put mgh/2 from above...

trans KE=5/4mr²Ï‰²

now rot KE is same as that was at B i.e. (1/2)mr²/2Ï‰²

trans KE at C = 5/4mr²Ï‰²
rot KE at C mr²Ï‰²/4

hence 5:1..

[1]

is it alr8...

â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆâ–‘â–’â–“â–ˆ

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Abhishek Priyam ·2009-01-23 23:56:44

designed my reply... :p

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eureka123 ·2009-01-23 23:59:00

kya baat hai..............."" FASHION DESIGNER ABHISHEK PRIYAM ""

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