who can estimate their mph.... - Snowboarding Forum - Snowboard Enthusiast Forums
SnowboardingForum.com is the premier Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 02-04-2009, 04:30 PM   #1 (permalink)
Member
 
Join Date: Dec 2008
Posts: 70
Default who can estimate their mph....

Me and my friends were talking. We have no clue or couldnt even estimate the mph we get to. i plan on taking my boat gps next time i go. Problary this weekend. It has a top speed hold so when i get to the bottom i can check the top speed went. So has anyone ever done this out of pure curiosity?
RoughedgesMR is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-04-2009, 04:33 PM   #2 (permalink)
Senior Member
 
Join Date: Oct 2008
Posts: 179
Default

i have but for some reason it wouldn't clock my speed. i tried with a tom-tom gps. i kept it in my pocket though so that might have been the problem
shredder07 is offline   Reply With Quote
Old 02-04-2009, 04:33 PM   #3 (permalink)
-LIFETIME MEMBER-
 
legallyillegal's Avatar
 
Join Date: Oct 2008
Location: fuck Snowboarding
Posts: 4,477
Default

gps won't tell you velocity
__________________
THERE ARE SPECIFIC REASONS AS TO WHY I AM MORE LOCAL THAN YOU

GOD IS DONUT
legallyillegal is offline   Reply With Quote
Old 02-04-2009, 04:55 PM   #4 (permalink)
Gimpystyle
Guest
 
Posts: n/a
Default

You could just find a run of predetermined length and time yourself going down. Your GPS will most likely have trouble because it won't be accounting for the slope.
  Reply With Quote
Old 02-04-2009, 04:55 PM   #5 (permalink)
Member
 
Join Date: Dec 2008
Posts: 70
Default

Quote:
Originally Posted by legallyillegal View Post
gps won't tell you velocity
it will tell you mph.
RoughedgesMR is offline   Reply With Quote
Old 02-04-2009, 04:57 PM   #6 (permalink)
Senior Member
 
Technine Icon's Avatar
 
Join Date: Jan 2009
Location: CT
Posts: 1,252
Default

I know it's kinda ridiculous, but if u really want to know, u could rent a radar gun.
Technine Icon is offline   Reply With Quote
Old 02-04-2009, 05:04 PM   #7 (permalink)
Member
 
Join Date: Dec 2008
Posts: 70
Default

Quote:
Originally Posted by Technine Icon View Post
I know it's kinda ridiculous, but if u really want to know, u could rent a radar gun.
i have used my boat gps from top end runs in my car to , quads, dirtbikes, streetbikes, shifter karts, pocket bikes, boats, shit i even strapped it to my rc cars. I dont understand what that guy is talking about with velocity.
RoughedgesMR is offline   Reply With Quote
Old 02-04-2009, 05:10 PM   #8 (permalink)
Senior Member
 
Dawg Catcher's Avatar
 
Join Date: Jan 2009
Location: Back to Arizona
Posts: 915
Default

In physics, velocity is defined as the rate of change of position. It is a vector physical quantity; both speed and direction are required to define it. In the SI (metric) system, it is measured in meters per second: (m/s) or ms-1. The scalar absolute value (magnitude) of velocity is speed. For example, "5 meters per second" is a scalar and not a vector, whereas "5 meters per second east" is a vector. The average velocity v of an object moving through a displacement (Δx) during a time interval (Δt) is described by the formula:


what he is trying to say is because your gps wont chart your vector/slope angle you wont chart velocity which is not what you wanted to do in the first place. pay no mind to douche bag 2 his posts or almost as meaningless as mine.
__________________
Dawg Catcher is offline   Reply With Quote
Old 02-04-2009, 05:10 PM   #9 (permalink)
Senior Member
 
Join Date: Feb 2008
Posts: 393
Default

You wont get an accurate reading with a GPS because you are not traveling on a flat ground
jeri534 is offline   Reply With Quote
Old 02-04-2009, 05:28 PM   #10 (permalink)
Senior Member
 
sgauto08's Avatar
 
Join Date: Jan 2009
Location: ...at my house... duh
Posts: 121
Default

dude just mak it into a physics problem it's easy figure out the distance that your going, time yourself and with just those two things you could figure out your average velocity. But if you wanted to find out your final velocity take your distance multiply it by 2 and divide that by your time and that should give you your final velocity which is what your looking for. And after that if you wanted you could find your acceleration for that distance. That should work. its actually easy or at least it is for me.
sgauto08 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

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



All times are GMT -5. The time now is 11:33 AM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2
VerticalSports
Baseball Forum Golf Forum Boxing Forum Snowmobile Forum
Basketball Forum Soccer Forum MMA Forum PWC Forum
Football Forum Cricket Forum Wrestling Forum ATV Forum
Hockey Forum Volleyball Forum Paintball Forum Snowboarding Forum
Tennis Forum Rugby Forums Lacrosse Forum Skiing Forums