LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #18   Report Post  
Old May 21st 08, 09:05 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Mar 2007
Posts: 801
Default Wrist Rocket Height

Jim-NN7K wrote:
Tim- from my High school Physics== the Formula is: F= MA
Force = Mass Times Acceleration. Perhaps a Bow and Arrow
will exceed the (Wrist Rocket) in this department? at 50#
Pull for Acceleration? (Oz per Oz) Jim NN7K


more relevant is the 2ad=v^2 equation... height goes as the square of
the launch velocity, neglecting air drag and line drag.

but, where the bow and arrow really excel is in the overall larger mass
of the projectile and higher launch energy (mostly the latter. the arrow
is a couple or three ounces.. same as the wrist rocket.. but the bow
will easily have a 50 lb draw and longer distance.

See, e.g., http://www.stortford-archers.org.uk/medieval.htm for some
discussion of bow and arrow physics




Tim Shoppa wrote:

On May 15,

 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Flip that wrist, flip that wrist, flip that wrist so limp Keyclowns are retards CB 0 March 18th 07 11:05 PM
Rocket Boy KC8GXW-Jim Policy 2 February 11th 07 10:28 PM
Rocket Antennas... [email protected] Antenna 2 February 7th 06 07:46 PM
Antenna height vs roof height Thierry Antenna 4 July 22nd 04 05:00 PM
You may not be a rocket scientist.... KØHB Policy 1 November 10th 03 02:42 AM


All times are GMT +1. The time now is 01:30 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017