Urgent !!! Physics Help.....Car Guys can come in here too!! Its related to both!

[CirekL]

>>Ffriction = co-efficient * normal force
>>Ffriction = co-efficient * 2/3mg
>>co-efficient = 2Ffriction / 3mg

co-efficient = 3/2 (Ffriction / mg) , no???

Handle: Interesting... but we still perceive at a certain rate correct? (i.e. brain kinetics, translation of frequencies, etc.) There must be some finite number, it can't be just some continuous fluid sequence.

 

[mAdD INDIAN]

CirekL: that's the same thing as I did!

Apache: I'll scan the question and link it.

 

[CirekL]

>>Ffriction = co-efficient * normal force
>>Ffriction = co-efficient * 2/3mg
>>co-efficient = 2Ffriction / 3mg

co-efficient = 3/2 (Ffriction / mg) , no???

No... you wrote (2/3) (Ffriction / mg) just curious... oh well, I'll stop

 

[mAdD INDIAN]

CirekL: You are right...I mistyped it.

To all who are interested, I scanned in the question and put it up.
CLick Here - 1

Click Here - 2 (same thing...just diferent site)

 

[dcdomain]

Sweet... thanks CirekL. You a physics major or teacher?

 

[CirekL]

dcdomain No prob... I'm a Junior studying Computer Science and Engineering, but I've finished all my physics classes.
Oh my gosh... is that physics prob. from Haliday and Resneck??? It looks so firmiliar.

 

[mAdD INDIAN]

Is my question a college level Physics question?

Btw, I'm in OAC Physics in high school.

So anyone know how to solve it?? please?

 

[Handle]

CirekL: Perception, if I'm not mistaken, is simply too complicated a topic to give a set number of frames per second of perception. It all depends what you're perceiving. If for 1/50th of a second I showed a bright flash of lightning on a dark night, you would still see it--in fact, it would probably leave a residual image in your mind. However, if I was making a Disney movie, and oh, say, replaced two fields on a 60 fields per second clip with an image of something totally out of context, you might not perceive that. If I'm not mistaken, our visual perception is based strongly on contrast--when things are blurry and similar in color and intensity, we can resolve fewer "frames per second" of information, so to speak.

Note though that I have not studied perception or psychology, but it is one of my favorite things to observe and think about.

 

[Handle]

mAdD INDIAN: The question is probably appropriate for OAC-level physics (that's Grade 13 right?)--maybe a little on the difficult side. The only thing that makes it difficult is that they make you work entirely in terms of variables. In high school, they generally tend to give you numbers rather than make you work out general cases.