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M4 Bearings mess

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Original post by TeeEm
relative velocity is very difficult to self teach ....


I am learning this the hard way :cry2:
Reply 21
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TeeEm
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Original post by Student403
I am learning this the hard way :cry2:


look at my example books ... but I do not know how useful they will be
Original post by TeeEm
look at my example books ... but I do not know how useful they will be


http://www.madasmaths.com/archive/maths_booklets/mechanics/m3_m4_relative_motion.pdf

This?
Reply 23
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TeeEm
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Original post by Student403


yes
I have written one more question which will go up next week sometime
Original post by TeeEm
yes
I have written one more question which will go up next week sometime


Thank you very much!
Original post by tiny hobbit
With winds, we generally talk about the direction they are blowing from.

The same is true in everyday life. A westerly wind blows from the west.


Original post by Gome44
The wind relative to the man is coming from N10W


Got it, thanks for the help!
Original post by TeeEm
relative velocity is very difficult to self teach ....


Hey I first want to thank you for that relative velocity booklet, it's been helping me a lot! Secondly I'm not totally sure about question 28.

http://madasmaths.com/archive/maths_booklets/mechanics/m3_m4_relative_motion.pdf

I got the same answer as yours except with theta and phi switched. And in your solution, the direction of R, is going downwards, but in the question is said it's moving to the north. I'm not really sure.
Reply 27
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TeeEm
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Original post by gagafacea1
Hey I first want to thank you for that relative velocity booklet, it's been helping me a lot! Secondly I'm not totally sure about question 28.

http://madasmaths.com/archive/maths_booklets/mechanics/m3_m4_relative_motion.pdf

I got the same answer as yours except with theta and phi switched. And in your solution, the direction of R, is going downwards, but in the question is said it's moving to the north. I'm not really sure.


I will check ...
often I write the solution first and then I type the question
Original post by TeeEm
I will check ...
often I write the solution first and then I type the question


That would make sense, since it's only one word in the question that would change everything. To be precise it's that "R is driving south" when it should be north, according to your solution.
Reply 29
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TeeEm
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Original post by gagafacea1
That would make sense, since it's only one word in the question that would change everything. To be precise it's that "R is driving south" when it should be north, according to your solution.


thank you for pointing out
Original post by TeeEm
thank you for pointing out


The least I can do :smile:
Reply 31
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TeeEm
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Original post by gagafacea1
The least I can do :smile:


Just check it ... Obvious typo due to copy and paste.
The solution is correct.
I will upload the corrected version in a day or two

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