Jason sure has gotten a lot of feedback on this question. I have these
comments.
Pound/kilogram is, in principle, acceleration, since the pound is a unit of
force, and force divided by mass is acceleration. According to a
conversion calculator a colleague gave me, 1 pound (force) is 4.448222
newtons. Since G= (approximately) 9.8 m/sec^2 (meters per second
squared), it looks like (pound/kilogram) x 2 = G (approximately, as
acceleration).
Jason refers to G force. Mass x G = force (weight) as several have pointed
out. A body's mass has a force (weight) applied to it when accelerated.
I wonder if something is left out of the question - are these some kind of
shorthand units? For example, in referring to flight, people talk about G
force - since a pilot's mass does not change, acceleration will effectively
add to weight force on the body. No matter the mass of the pilot's body,
the multiplier increasing the force on it above that on the earth's surface
is the acceleration (commonly expressing in "G"s). My favorite example of
a shorthand unit is wave number, the number of wavelengths of radiation in
1 centimeter. I believe it is most commonly used in infrared spectroscopy
as a unit of energy. "Inverse centimeters" seems far removed from energy,
but is equivalent if you understand the shorthand involved and multiply
wavenumber by Planck's constant and again by the speed of light.
I look forward to the day when "pounds" and "inches" are as commonly used
in mechanics as "statcoulombs" and "abamps" now are in electricity and
magnetism. Lou Hart
-----Original Message-----
From: <Rudy Sedlak> [SMTP:[log in to unmask]]
Sent: Tuesday, October 09, 2001 2:42 PM
To: [log in to unmask]
Subject: Re: [TN] Question for the physics "gurus"
1 "G" = 32 feet/second/second
don't think you can convert kilos to feet/second/second
Rudy Sedlak
RD Chemical Company
------------------------------------------------------------------------
---------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET
Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases >
E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700
ext.5315
------------------------------------------------------------------------
---------
---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------
|
