Commonly climbed rocks......



Volcanic rocks provide a very easy climb, with lots of big pockets and foot placement for a beggining climber. Usually these rocks have a very high friction coefficient making them seem easy to "stick" to. This young lad, is pressing the rock with his hands not really using a hold, instead using more friction.

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www.climb.co.nz/ RockClimbing/Rock-Climbing.jpg


Here is an example of a rock made from harder material, with a lower friction coefficient, making the climbing a little more difficult, causing the climber to rely more on hand strength, rather than friction to move up the rock. This rock type is very popular among climbers today. This man is climbing using an open handed grip with his right hand ensuring him the most positive force on bigger holds.

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mountains.tos.ru/kopylov/ pict6/rock_bezengi6.jpg


And last is sandstone, which is considered the most dangerous rock type to climb, due to low friction and easy to break. As you can see the this climber has the least amount of hand holds causing this climbers techinique to change in hand holds, she is using a closed grip with her hands ensuring the most positive force her fingers can exert on the rock.

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www.chockstone.org/.../ MyFriendFlipper4l.jpg

Those are not the only type of rock climbed but they are examples, as you can see the texture of the rock, size of holds have a direct relation ship behind the physics that a climber will use to climb a rock, such as, friction climbers press the rock, with their palms, and shoes, and jug climbers (picture two) will grip bigger holds with an open hand to get the most  positive force, whereas, in the last case a closed handed grip(picture three)  is the best to use to get the most positive force.

CONTENTS

Introduction
Commonly climbed rocks....
Climbing techniques....
Force generated by falling....
Anchors....
Bibliography