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rockmama13
May 3, 2004, 3:49 AM
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I am becoming an avid rock climber, and as part of a physics project I am suppose to research/ experiment a topic of interest and the physics involved. So naturally I chose rock climbing. Does anyone have any good thoughts, or know of any resources for such a thing?
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musicman
May 3, 2004, 4:07 AM
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i did something like this in my physics class, do you project on momentum and acceleration, you could talk about taking falls, do the equations and figure out what the different forces would be for different falls, then compare them with you and you bigger/smaller friends...use big words, teachers like that
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gravitytheory
May 3, 2004, 4:12 AM
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Run a search, bro. The forum is chock full of such topics. Best of luck.
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fourdeadpresidents
May 3, 2004, 4:14 AM
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Watch the movie cliffhanger in class then explain how every thing in it defies the laws of physics. ie the boltgun Every one likes to watch a movie during class.
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hippie_dreams
May 3, 2004, 4:21 AM
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i think there's been a dozen or so posts on this - you should search, but...
you should look at the friction of skin vs. climbing rubber (ie the mu (coefficient of friction) of both
you should put together a plot of when too much chalk makes it slippery (like in microns thick or something)
you should make a report on fall factors and forces involved (when will the rope break)
etc. etc. etc....
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alderak
May 3, 2004, 4:23 AM
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show that friction is independent of surface area
even if it doesn't seem that way sometimes when your hugging a sloper :wink:
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qpang
May 3, 2004, 6:42 AM
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You could talk about camming devices. There is some very cool physics invloved there. If you go to Wild Country's website http://www.wildcountry.co.uk/frameshardware.html
and check out the "Cam Book" It has a lot of info in it on the history of cams and the physics behind them. Hope this helps.
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curt
May 3, 2004, 6:54 AM
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In reply to: Watch the movie cliffhanger in class then explain how every thing in it defies the laws of physics. ie the boltgun Every one likes to watch a movie during class.
I like this idea. Additionally, explain how that poor gal's seat harness buckle was able to extrude through that carabiner so easily--causing her to fall to her untimely death. I suspect this unfortunaqte outcome is why most harness manufacturers no longer use buckles made of soft lead-tin alloys. Hahahahahaha.
Curt
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qpang
May 3, 2004, 7:00 AM
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I heard that Black Diamond sued them for that footage of the harness failing. Don't know if it's true or not though
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saagax
May 3, 2004, 8:39 PM
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In fact you can calculate the speed and distance of a climber (only if he or she screams) while falling based on the doppler effect
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petsfed
May 3, 2004, 8:53 PM
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Or show that initially a falling climber is an underdamped harmonic oscillator then turns into a critically damped harmonic oscilator with a peak force of at most 12 kn.
Oh wait, high school physics right? Show that the peak force on the top most piece of protection can (theoretically) reach 24 kn. Just remember the pulley effect. And assume that the belay is non-dynamic.
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stevep
May 4, 2004, 5:36 PM
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Quite a few years ago (15-20?) there was an article in Scientific American (I think) on slab climbing, foot position, rubber, and friction. If you can dig it up, that might be a good start.
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rockmama13
May 6, 2004, 5:33 AM
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Thanks everyone for the awesome input. I was originally just going to focus on torques (force x lever arm) but all these ideas about friction, momentum, acceleration, and doppler effect, sounds great. My professor will love it. I am also incorporating personal pics. for the illustration of torques with various holds. I'll have to let you all know how I do. :D
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realization_83
May 6, 2004, 8:23 AM
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what about talking about what causes a climber to barn door, and how flagging is used to overcome that problem, that would involve talking about center of gravity,
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jonoj
May 6, 2004, 10:42 AM
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In reply to: In fact you can calculate the speed and distance of a climber (only if he or she screams) while falling based on the doppler effect
haaaahaaahaahahaHAHAHA :lol:
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