Discussion Forum - Northstar Chevelle Club

Members Login
Username 
 
Password 
    Remember Me  
NCC Forum Home Page -> NCC - General Discussion -> Today’s math question
Post Info TOPIC: Today’s math question
OscarZ


Treasurer

Status: Offline
Posts: 829
Date:
Today’s math question
Permalink  
 

That would be the speed of sound...the sound of the part reaching it's final destination and the sound of the expletive(s) emanating from the buffer operator!  razz



-- Edited by OscarZ on Wednesday 15th of February 2012 01:12:27 PM

__________________

Michael S. - Cambridge
'71 Malibu
John D


2K+ Club

Status: Offline
Posts: 2791
Date:
Permalink  
 

Just for review - an excerpt of "Tools Explained".

DRILL PRESS: A tall upright machine useful for suddenly snatching flat metal bar stock out of your hands so that it smacks you in the chest and flings your beer across the room, denting the freshly-painted project which you had carefully set in the corner where nothing could get to it.

 

WIRE WHEEL: Cleans paint off bolts and then throws them somewhere under the workbench with the speed of light . Also removes fingerprints and hard-earned calluses from fingers in about the time it takes you to say, 'Oh sh--!'

 Glad you're not hurt too seriously. Is the headlight ring a goner?

 

 

 

 

 

 

 



-- Edited by John D on Wednesday 15th of February 2012 04:42:43 PM

__________________

 

John D. - St. Louis Park, MN.

1965 El Camino - LT-1, 4L60e, 4wh discs, SC&C susp.
2013 F-150 Platinum - Twin Turbo 3.5

2018 Factory Five MkIV Roadster build thread
dashboard


2K+ Club

Status: Offline
Posts: 2444
Date:
Permalink  
 

If you are buffing a piece of chrome using a bench buffer with a seven inch diameter cloth pad turning at 3500 RPM and the chrome part gets snagged by the wheel.  Approximately how fast in MPH will the part be traveling when it finally gets ejected or launched from the buffer?

It should be noted that the bench buffer may not be in the same exact location after the part is ejected.   In fact there may be several things different in the room; none of which have anything to do with the rather simple mathematical computation.



__________________

Kevin

Northwestern Ohio
Tony Hoffer


Moderator

Status: Offline
Posts: 886
Date:
Permalink  
 

23.2 MPH... maybe

__________________
You can sleep in your car, But you cant drive your house
Derek69SS


Founding Member

Status: Offline
Posts: 2787
Date:
Permalink  
 

72.89 MPH is the surface speed of the buffing wheel.

__________________

Derek Kiefer - Mantorville, MN

69 Malibu Pro-Touring stroker LS1-383/T56 - 69 SS396-325/3spd project
Derek69SS


Founding Member

Status: Offline
Posts: 2787
Date:
Permalink  
 

Forgot to show my work...

7" diameter x pi = 21.9912" per rev
x 3500rpm = 76969.2" per minute
x 60 min = 4618152" per hour
/12 = 3848.46 feet per hour
/5280 = 72.8875 MPH

:)

__________________

Derek Kiefer - Mantorville, MN

69 Malibu Pro-Touring stroker LS1-383/T56 - 69 SS396-325/3spd project
bowtie


Secretary

Status: Offline
Posts: 2940
Date:
Permalink  
 

OscarZ wrote:

That would be the speed of sound...the sound of the part reaching it's final destination and the sound of the expletive(s) emanating from the buffer operator!  razz



-- Edited by OscarZ on Wednesday 15th of February 2012 01:12:27 PM

 I can guess the word that makes the sound in questionangry



__________________

Bryan-NW 'burbs
1972 Malibu
Vaguely stock appearing, and the opposite of restored.
1999 std bore 5.7, Vortec heads, Holley Stealth Ram, GM cam
700R4, Viking coilovers, 12 bolt 4.10 posi, and a whole bunch more
Jon H


1K+ Club

Status: Offline
Posts: 1260
Date:
Permalink  
 

Can speed be determined in explatives?

__________________

 

'69 Convertible,  Lemans Blue, 454, 200 4R, 12 Bolt. 

Jon H.  Lino Lakes
Lost in the 60s


President

Status: Offline
Posts: 7323
Date:
Permalink  
 

dashboard wrote:

If you are buffing a piece of chrome using a bench buffer with a seven inch diameter cloth pad turning at 3500 RPM and the chrome part gets snagged by the wheel.  Approximately how fast in MPH will the part be traveling when it finally gets ejected or launched from the buffer?

It should be noted that the bench buffer may not be in the same exact location after the part is ejected.   In fact there may be several things different in the room; none of which have anything to do with the rather simple mathematical computation.

This is why you take it to someone with experience....they MIGHT be able to save it if it isn't complete trash now.

Hope no windows were in the way...stirpot

 



__________________

Mitch D.   River Falls, WI

Lifetime member of the "Cars apart Club"

1966 Chevelle SS 396 M20

1970 Chevelle SS 396 M20

1967 Camaro SS/RS 350 M20
dashboard


2K+ Club

Status: Offline
Posts: 2444
Date:
Permalink  
 

7" diameter x pi = 21.9912" per rev
x 3500rpm = 76969.2" per minute
x 60 min = 4618152" per hour
/12 = 3848.46 feet per hour
/5280 = 72.8875 MPH

Derrick, your math looks exactly like mine; you get the gold star today.

23.2 MPH... maybe

Tony, it may slow to 20-30 MPH immediately after it’s first contact with the human body.

That would be the speed of sound...the sound of the part reaching it's final destination and the sound of the expletive(s) emanating from the buffer operator!

I can guess the word that makes the sound in question.

Can speed be determined in expletives?

I cannot remember what I said but I know it was loud, very loud; Angie came right to the garage.

Mitch if I had your money I would have someone else do it all.

The part, a headlight-retaining ring somehow stayed attached to the wheel; the buffer began dancing across workbench. I thought this was my first priority until I realized there was blood everywhere. So my old Navy training kicked in and I dove for the deck, next I covered one eye at a time to see if both where still working, they were. About this time, the part departed the buffer, holy smit. I counted three points of contact, then all I could hear was my buddy buffer running on the bench.

I post this in the sprit of safety, anyone that knows me will tell you, I am always the safety nut, often to the point of being a pain in the butt. I have polished countless things on my buffer over the years. When you least expect, it can and will bite you in the butt or in this case hand. Glad it was only a $6.00 part and all I have to show for it is a band-aid on my finger and my wounded pride.



__________________

Kevin

Northwestern Ohio
Lost in the 60s


President

Status: Offline
Posts: 7323
Date:
Permalink  
 

If you had my money, you couldn't afford the buffer to destroy the part...laughing

Glad it's only a small cut. When I read about the blood everywhere, I thought you might have a new trophy scar.



__________________

Mitch D.   River Falls, WI

Lifetime member of the "Cars apart Club"

1966 Chevelle SS 396 M20

1970 Chevelle SS 396 M20

1967 Camaro SS/RS 350 M20
Chris R


2K+ Club

Status: Offline
Posts: 2745
Date:
Permalink  
 

Works good on throwing bolts back at you too. Even if you have a vice grip clamped on them.



__________________

Chris - Ramsey, MN.

Dear Optimist, Pessimist, and Realist.

While you guys were busy arguing about the glass of water. I drank it!

Sincerly,

The opportunist.
SShink


3K+ Club

Status: Offline
Posts: 4731
Date:
Permalink  
 

I'm just glad all it caused was a band aid and bruised pride. 

Anything that rotates deserves respect!  thumbsup



__________________

Stan S.-Twin Cities 'South Metro'

1972 Malibu Convertible 2nd time around 

2001 Mustang GT Convertible 

Forum influenced terms: 'Link Paste', 'Stanitized', & 'Revolving garage door...' 

 
Pushrod


Active Member

Status: Offline
Posts: 151
Date:
Permalink  
 

glad you werent hurt badly good thing the car wasent in the shop cause you know that ring would find that freshly painted beautyhitsfan



__________________

Craig S - Shakopee Mn
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
NCC Forum Home Page -> NCC - General Discussion -> Today’s math question
Chatbox
Please log in to join the chat!