What Angle Does a Jetliner Turn on a Circular Path?

AI Thread Summary
A jetliner flying 2.1 km on a circular path with a radius of 3.3 km needs to determine the angle of its turn. The equation for arc length, S = rθ, is central to solving this problem. There is confusion regarding whether the answer should be in degrees or radians, as the problem statement does not specify. One participant notes the importance of careful review to avoid overlooking errors, especially under time pressure. The discussion highlights the need for clarity in unit requirements when solving such problems.
opus
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Homework Statement


Making a turn, a jetliner flies 2.1 km on a circular path of radius 3.3 km.
Through what angle does it turn? Express in 2 significant figures.

Homework Equations


Arc length = ##S=rθ##

The Attempt at a Solution


Please see the attached image. I've tried multiple different forms of the answer and none of them are being accepted. Is it conceptual?
 

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  • Screen Shot 2019-01-09 at 10.01.33 PM.png
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A screenshot of the problem.
 

Attachments

  • Screen Shot 2019-01-09 at 10.02.43 PM.png
    Screen Shot 2019-01-09 at 10.02.43 PM.png
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Looks like you overlooked the factor of π in the denominator when converting to degrees.
 
Oh man. Been a long day. Conceptually, you'd call it good?
 
opus said:
Oh man. Been a long day. Conceptually, you'd call it good?
Yes. The problem statement doesn't indicate the units required for the answer. So, maybe you don't need to convert to degrees.
 
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Thanks. I really need to try to slow down on working problems. Once I miss something and look it over for errors, it's like the error blends in and I don't even notice it.
I don't like the degree thing as it makes more sense to be in rad, but by the looks of the screenshot of the problem, it looks like it's got a degree symbol to the right.
 
opus said:
... but by the looks of the screenshot of the problem, it looks like it's got a degree symbol to the right.
Ah, I hadn't noticed. Thanks.
 
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Thanks for your help as always.
 
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