Class of 2014!!!!!!!!!!!!!!!!!!!!!!!!!!

[witness23]

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static

 

[chinook]

static

but whyy😕

 

[Myuu]

so does that mean ur less than 100 lbs?

MCAT question if you guys understand


When a car is towed at constant velocity, the frictional force between the road and its tires is:
Kinetic or static











the answer says
"Static because the contacting surfaces are not sliding relative to each other."


anybody understand this?

The tires are rolling. The car is not being dragged in park. That is a super misleading question, though. I think they want you to assume that there is no friction between the rolling wheel and the pavement... you wouldn't be able to calculate that using mcat-level physics anyway...

 

[BlueElmo]

MCAT question if you guys understand


When a car is towed at constant velocity, the frictional force between the road and its tires is:
Kinetic or static











the answer says
"Static because the contacting surfaces are not sliding relative to each other."


anybody understand this?

yeah, the tires aren't sliding relative to each other, so the same spot is in contact with the ground the whole time. It's confusing at first, but if you think about it, it makes perfect sense.👍

 

[witness23]

The tires are rolling. The car is not being dragged in park. That is a super misleading question, though. I think they want you to assume that there is no friction between the rolling wheel and the pavement... you wouldn't be able to calculate that using mcat-level physics anyway...

nahh, there's friction, its just static.

the point of movement in tires is constant. friction can only be kinetic if that point is moving along the spot of contact

 

[chinook]

okie dokes
thanks guys

wats confusing me is because say a car is driving along
nt just towed
the tires are still rolling
does that mean that is also static??
coz the friction isnt in one constant place?

 

[Myuu]

nahh, there's friction, its just static.

the point of movement in tires is constant. friction can only be kinetic if that point is moving along the spot of contact

Ahhh... yeah.

 

[ksmi117]

All rotational motion is due to static friction. Think about it like this. So at one moment in time there is a specific point of the tire touching the road. A millisecond later, that point is still in contact with the same piece of the road. That's why the tire actually rolls. If it was kinetic friction, the tire would not spin, it would just slide along the road.

Make sense?

 

[witness23]

this is one of the harder things to explain to my class. also the two springs problem. unlikely to see either on a MCAT, but you will see them plenty during practices.

 

[witness23]

When a car is towed at constant velocity, the frictional force between the road and its tires is:
Kinetic or static


All rotational motion is due to static friction. Think about it like this. So at one moment in time there is a specific point of the tire touching the road. A millisecond later, that point is still in contact with the same piece of the road. That's why the tire actually rolls. If it was kinetic friction, the tire would not spin, it would just slide along the road.

Make sense?

👍

 

[ksmi117]

okie dokes
thanks guys

wats confusing me is because say a car is driving along
nt just towed
the tires are still rolling
does that mean that is also static??
coz the friction isnt in one constant place?

Any rotational motion is due to static friction.

 

[chinook]

Any rotational motion is due to static friction.

ye i think that rotational motion is all static makes sense

thank youuu 🙂
still hoping it wont be on the MCAT

 

[GangGreen]

ye i think that rotational motion is all static makes sense

thank youuu 🙂
still hoping it wont be on the MCAT

when are you taking the MCAT?

Also, just out of curiousity, are you desi? Just wondering cuz I saw you posted in desi pre meds thread 🙂

 

[Lukkie]

if a plane is driving on a treadmill such as that the treadmill increases its speed so the plane doesn't actually move to an outside observer, does it ever take off?

http://forums.studentdoctor.net/showthread.php?t=4952

LOL - op of that thread is from ksmi

 

[GangGreen]

I was in ksmi, Florida last year. Yeah, ksmi!!!!!

 

[tidefan]

ye i think that rotational motion is all static makes sense

thank youuu 🙂
still hoping it wont be on the MCAT

I just took my last "sit down and do the whole thing" practice test this morning. I think tomorrow will just be some light, focused practice on individual sections, and trying desperately to stay calm.

 

[ksmi117]

I just took my last "sit down and do the whole thing" practice test this morning. I think tomorrow will just be some light, focused practice on individual sections, and trying desperately to stay calm.

 

[olemissbabydoc]

HI 2014ers! 🙂

 

[ksmi117]

HI 2014ers! 🙂

OMBD! I see your thread is rather boring tonight. You can hang out with us, we're cooler anyway. 😉

 

[olemissbabydoc]

OMDB! I see your thread is rather boring tonight. You can hang out with us, we're cooler anyway. 😉

Haha, you guys wish .

But I'm one of the nice 2013ers, so I'll keep my comments to myself 😉

 

[tidefan]

Thanks, I'll be holding on to those guys👍

(even if they are from an LSWho girl)

 

[olemissbabydoc]

But that's omBD ksmi 😉

 

[BlueElmo]

Haha, you guys wish .

But I'm one of the nice 2013ers, so I'll keep my comments to myself 😉

We kool.😎

 

[olemissbabydoc]

How are all of your applications going, everyone? Finishing up those primaries?

 

[ksmi117]

But that's omBD ksmi 😉

Oopsies. Typo. Forgive me, please.

 

[olemissbabydoc]

Oopsies. Typo. Forgive me, please.

We'll clear it up. That's one more foreign object removal from the ear, nose, or other unmentionable place when you're my intern

 

[BlueElmo]

How are all of your applications going, everyone? Finishing up those primaries?

It's good. 👍

 

[ksmi117]

How are all of your applications going, everyone? Finishing up those primaries?

Sigh, yep. Only my PS left to fix up, I think. Also, I've started working on secondary ideas. Just brainstorming from last year's prompts and such.

 

[chinook]

when are you taking the MCAT?

Also, just out of curiousity, are you desi? Just wondering cuz I saw you posted in desi pre meds thread 🙂

sorry for the delayed response

june 18th
and yes i am desi

 

[BlueElmo]

Sigh, yep. Only my PS left to fix up, I think. Also, I've started working on secondary ideas. Just brainstorming from last year's prompts and such.

Kiss me.

 

[BlueElmo]

topdy doo.

 

[BlueElmo]

now.

 

[chinook]

i still have quite a bit to finish up in my apps
all activities
and then fixing up my PS

 

[chinook]

seee
everybody stops posting when i come on

 

[GangGreen]

Indian?

 

[ksmi117]

seee
everybody stops posting when i come on

It's cause we don't like you. 😛

 

[chinook]

Indian?

yep

It's cause we don't like you. 😛

thats a lie
admit it everybody

 

[BlueElmo]

I like chinook, don't worry chinook. Ksmi is being a hater.👎

 

[ksmi117]

I like chinook, don't worry chinook. Ksmi is being a hater.👎

 

[BlueElmo]

Should I go work out or start cleaning up my apartment? That is the question.

 

[chinook]

haha
ksmi
u've been acting quite goofy these days
something interesting going on 😉

or were u just too busy to be goofy before 😛

 

[chinook]

Should I go work out or start cleaning up my apartment? That is the question.

clean up
coz thats working out as well

 

[ksmi117]

haha
ksmi
u've been acting quite goofy these days
something interesting going on 😉

or were u just too busy to be goofy before 😛

I'm a very sarcastic person. I just don't like being sarcastic until people get used to me, otherwise it comes off as mean. 🙁

 

[BlueElmo]

clean up
coz thats working out as well

This was one of the toughest choices I had to make in my life. After careful and thorough consideration, I am pleased to announce I have made my decision.





I'm doing neither.

 

[chinook]

I'm a very sarcastic person. I just don't like being sarcastic until people get used to me, otherwise it comes off as mean. 🙁

👍

 

[Lukkie]

This was one of the toughest choices I had to make in my life. After careful and thorough consideration, I am pleased to announce I have made my decision.

I'm doing neither.

adcoms love to hear that

 

[BlueElmo]

I'm too sexy for my shorts.

 

[Lukkie]

yeah they like jokes too

 

[chinook]

I'm too sexy for my shorts.

of course u are

 

[Lukkie]

of course u are