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Ashley1593
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A computer hard disk starts from rest, then speeds up with an angular acceleration of 190rad/s2 until it reaches its final angular speed of 7200rpm. How many revolutions has the disk made 10.0s after it starts up?
 2 years ago
 2 years ago
Ashley1593 Group Title
A computer hard disk starts from rest, then speeds up with an angular acceleration of 190rad/s2 until it reaches its final angular speed of 7200rpm. How many revolutions has the disk made 10.0s after it starts up?
 2 years ago
 2 years ago

This Question is Closed

3psilon Group TitleBest ResponseYou've already chosen the best response.1
dw:1351209240130:dw
 2 years ago

3psilon Group TitleBest ResponseYou've already chosen the best response.1
dw:1351209262497:dw
 2 years ago

3psilon Group TitleBest ResponseYou've already chosen the best response.1
dw:1351209379108:dw
 2 years ago

3psilon Group TitleBest ResponseYou've already chosen the best response.1
Divide 9500 by 2pi
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.0
7200 rpm = 754 rad.s/sec \[\omega _{f} = \omega _{i} + \alpha t\] \[754 = 190t\] t= 4 \[\theta = 754*6 + \frac{ 1 }{ 2 } 190*(4^2)\] theta = 4534 + 3039.5 =7563.5 radians =1203 rev.s
 2 years ago

NotTim Group TitleBest ResponseYou've already chosen the best response.0
Both wrong still
 8 months ago
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