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February 27, 2015

February 27, 2015

Posted by **dallas** on Tuesday, April 2, 2013 at 6:18pm.

from rest.

Answer in units of rev/s

- Physics -
**Elena**, Wednesday, April 3, 2013 at 3:54pmM=Iε

ε=M/I = 22.9/0.168 = 136.3 rad/s²

2πN=2πn₀t + εt²/2

2πn=2πn₀ + εt

n₀=0 =>

2πN= εt²/2

2πn= εt => t=2πn/ε

N= πn²/ε

n=sqrt {εN/π}=

=sqrt{136.3•17.1/3.14}=27.24 rev/s

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