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Properties of Footwear - Friction is a force.

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Properties of Footwear

Friction is a force. This force is when one surface slides and rubs across another and this causes friction and this tries to stop the movement of the two surfaces moving. Friction opposes the movement of an object this is noticeable when a ball is moving through the air and the air resistance is slowing the ball down until it eventually comes to a halt. This type of friction is called Kinetic (which means moving) energy into heat.

Examples of Friction

Running – especially when you start running pushing your feet against the ground is causing friction so that you can move forwards. Sprinter Runners have to wear spikes on the bottom of their shoes so that they can improve their grip on the running track.

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Examples of Sports where low friction is good

Ice Skating – Skates are designed to make you go faster. On the front of the skate there is a spiky front where this is designed to help you push off from a standing start.

Skiing – AS the skies slide over the snow the ski poles are the only grip that you have as there is less friction on the snow.

Curling – Ice is brushed forwards and backwards to allow the stone to move faster to get to its destination

Examples of Surfaces that are likely to need friction

Rough surfaces such as Glass paper have a interlocking grip and this is a very strong grip.

Dry Surfaces are not lubricated and the chalk dries and roughens grip.

Un streamlined

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Discussion of Vocational Implications

I have found that manufacturers should create different types of shoes for different types of sports. Such as a football boot should not be used for rugby because it is not such a physical sport and therefore they need less grip. Where as a rugby player needs bigger studs in his boot because when he goes to do a scrum he will need this strong amount of grip from his studs to drive forwards to win the scrum.

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