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December 19, 2014

December 19, 2014

Posted by **Rajan** on Monday, July 30, 2012 at 1:55pm.

- Dynamics -
**Elena**, Monday, July 30, 2012 at 4:43pm2π•f(fin)= 2π•f(init)-εt

f(fin)=0, f(init) = 1200 rev/min =20 rev/s.

2π•f(init)=εt

t=2π•f(init)/ ε= 2π•20/1.5=83.8 s.

2π•N= 2π•f(init) •t - εt²/2.

N= f(init) •t - εt²/4π=

=20•83.8 – 1.5•(83.8)²/4•π =

= 838 rev.

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