What Angle Does a Jetliner Turn on a Circular Path?

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Homework Help Overview

The discussion revolves around a problem involving a jetliner making a turn on a circular path, specifically focusing on the angle through which it turns given the arc length and radius. The subject area includes concepts from circular motion and angular measurement.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the relationship between arc length and angle, questioning whether the conversion to degrees is necessary. There are attempts to clarify the requirements of the problem and the implications of the units involved.

Discussion Status

There is an ongoing exploration of the problem, with participants offering insights about potential oversights in unit conversion and the interpretation of the problem statement. Some express uncertainty about the need for degrees versus radians, indicating a productive dialogue without a clear consensus.

Contextual Notes

Participants note the lack of explicit unit requirements in the problem statement, which leads to confusion regarding the necessary conversions. The original poster expresses frustration with errors that blend into their work, highlighting the challenges of problem-solving under pressure.

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?
 

Attachments

  • Screen Shot 2019-01-09 at 10.01.33 PM.png
    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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