What is the unit ni/sec and how does it relate to distance and speed?

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SUMMARY

The unit "ni/sec" appears to be a typographical error in a physics problem, likely intended to represent "m/s" (meters per second) or possibly "in/sec" (inches per second). The discussion highlights confusion surrounding the term, with participants suggesting that it may stem from a misreading of the letter "m" as "ni." The context of the problem involves calculating travel time over a distance of 315 meters at a speed of 15 ni/sec, which becomes trivial if interpreted as meters per second.

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This discussion is beneficial for physics students, educators, and anyone involved in teaching or learning about speed and distance calculations, as well as those interested in unit conversions and error identification in scientific contexts.

rachelleteo
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what is the unit ni/sec??

hi...
someone had ask me what is the unit ni/sec means? and i search through the net but i can't find it. i found something like grams Ni/sec but this Ni=Nickel. and i also came across the below:
"You are traveling at a speed of 15 ni/sec. Your destination is 315 metersaway. How long will it be before you arrive at your destination?"

so can anyone help me and let me know if you know what actually is ni/sec??

many thanks.
rachelle
 
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1.Where did u see such problem...?If it's a book,doesn't it have a table of units and conversions to SI-mKgs...?
2.It may be a typo in the book.Perhaps it's "mi" apud "miles"...:wink:
3.Rats,i cannot think of another reasonable explanation...

Daniel.
 
Maybe it's just m/s. Sometimes, a written 'm' might be mistaken for an 'ni'.
 
That's a typo. There is no other possible explanation. The question is physics 10 level.

Edit: And you can be pretty sure it isn't a typo for miles! 15 mi/s the person will be there in like .05 seconds!

:smile:
 
It's a new unit created by the knights who say..."ni!" (sorry...heheh)
 
You're right,Cepheid,there are horses which can sustain 15m/s on 315m...

Daniel.
 
It could be someone who had a fit of dyslexia. Perhaps they menat in/sec?
 
It would make much more sense in/hour...Trust me :-p

Daniel.
 
i don't know if it was typo... but i did not get from any textbook, so i could not refer to any tables... i got the question from this link: http://students.resa.net/taylorjfk/teacher/scidepartment/mackson/macksonquiz.htm
the last question...
and haha... 15 miles/sec?? it's like flashing pass...
 
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  • #10
"6.You are traveling at a speed of 15 ni/sec. Your destination is 315 metersaway. How long will it be before you arrive at your destination? (3 points)"

It would assume that "m/sec" was intended since the distance is given in meters. Of course, that makes the problem trivial. It is possible that "in/sec" was intended and the problem is really to convert from inches to meters (or vice-versa).
 

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