Mertsj
@wasiqss How is it 50 pi radians per second? If you contradict an answer you should provide a reason.
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meverett04
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original question?
wasiqss
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the speed was 25 m/s,so it means 25 rev in one second, hence 1 rev = 2pie so multiply 2 pie with 25
Mertsj
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25 m per second does not mean 25 rev in 1 sec since 1 rev is pi m not 1 meter
TuringTest
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I wanna know the question as well now
imranmeah91
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it would help if we know size of wheel
Mertsj
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a truck is moving at a rate of 90km/hr, and the diameter of its wheel is 1 meter. find the angular speed of the wheels in radians per second.
TuringTest
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it is a circumference of pi
Mertsj
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Of course. That is what I said.
TuringTest
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I know, just backing you up
imranmeah91
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It is 50 rad/sec
wasiqss
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diameter was one meter
Mertsj
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Yep so 1 revolution is C = Pi times diameter or pi meters
imranmeah91
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90000
------- = cycle per hours
2 pi .5
90000
------- 1/3600 = cycle per second
2 pi .5
90000
------- *2pi*1/3600 =(90000/.5)*1/3600= radian per second
wasiqss
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i rev= 2pie, hence 25 rev means 50 pie
imranmeah91
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who said 25 rev?