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Phy 231
Your 'cq_1_22.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** CQ_1_22.1_labelMessages.txt **
Copy the problem below into a text editor or word processor.
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An airplane traveling to the northwest is exerting just enough force to overcome wind resistance. It encounters a sudden wind gust which is directed at 30 degrees south of east, which results in a net force in that direction.
During the half-second before the pilot has time to react to the gust, does the airplane speed up, slow down or maintain constant (or very nearly-constant) speed?
answer/question/discussion: ->->->->->->->->->->->-> :
Since the initial force of the plane is in the opposite direction of the wind gust, the plane slows down during the first 1/2 second interval.
It feels the bump of the opposing wind force, which is a deceleration.
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Does it veer a bit to the right, a bit to the left or does it continue traveling along a straight line?
answer/question/discussion: ->->->->->->->->->->->-> :
The wind gust will make it veer to the Right
I put some pretend numbers and drew a vector of F 10 at 135 CCW of east For the original direction of the plane. I then drew the wind force at 2 units and 330 degrees CCW of East.
I then compered the initial and final vectors
Fox = 10 * cos 135 = -7.07
Foy = 10 sin 135 = 7.07
Frx = -7.07 + 2 cos (-30) = -5.337 is to the right or east
Fry = 7.07 - 2 sin (-30) = 8.07 is North
So it will veer in the north east direction, which is to the right.
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Phy 231
Your 'cq_1_21.2' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** **
Copy the problem below into a text editor or word processor.
This form accepts only text so a text editor such as Notepad is fine.
You might prefer for your own reasons to use a word processor (for example the formatting features might help you organize your answer and explanations), but note that formatting will be lost when you submit your work through the form.
If you use a word processor avoid using special characters or symbols, which would require more of your time to create and will not be represented correctly by the form.
As you will see within the first few assignments, there is an easily-learned keyboard-based shorthand that doesn't look quite as pretty as word-processor symbols, but which gets the job done much more efficiently.
You should enter your answers using the text editor or word processor. You will then copy-and-paste it into the box below, and submit.
A typical automobile coasts up a typically paved incline, stops, and coasts back down to the same position.
When it reaches this position, is it moving faster, slower or at the same speed as when it began? Explain
answer/question/discussion: ->->->->->->->->->->->-> :
Since the surface of the incline is not ideal meaning it is not friction less. The automobile will lose Energy going up the incline to friction, and also lose energy coming back down the incline to friction.
So by the time it crosses its initial position, it will have a speed opposite in direction and a little slower than its original speed at that point.
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&#Very good responses. Let me know if you have questions. &#