<PRE><B>Question 821685</B>
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c = 2 pi r
c = 2 pi 1/2
c = 3.1415927 m / rev
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linear speed:
s = (105 km / hr) * (1000 m / km) * (1/60 hr / min)
s = 1750 m / min
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angular speed:
a = s / c
a = (1750 m / min) / (3.1415927 m / rev)
a = 557.0423 rev / min
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convert angular speed to radians/minute:
a = (557.0423 rev / min) * (2pi radians / rev)
a = (557.0423 rev / min) * (2*3.1415927 radians / rev)
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answer:
a = 3500 radians/min
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