Aqua-planing
3 Jan 2019
So imagine yourself on some wheels on a rainy, slightly flooded day. And you're somehow rushing somewhere and you think it'd be good to pick up the speed. And so those wheels you're on, roll faster and faster until a layer of water forms underneath the wheels because the rotation and friction of the wheels are no longer enough to push the water out of the way. Then in the mist of rain and dark of storm, a huge immovable structure appears in front of you. and you have to stop immediately to avoid crashing onto the structure. But because the wheels are no longer in contact with the water there is virtually no friction between the wheels and the road and the brakes do not work. and so you are an unstoppable object approaching an immovable object at full speed.
And then you crash. The collision is completely inelastic. Which means you stick to the immovable object. And as much as we would like to think of the human body as a rigid-body, and we do consider it a rigid-body in most physics applications, it can actually be deformed. And so you crash into a million pieces and break apart.
And of course death occurs. This is perhaps how EunB and RiSe from kpop group Ladies' Code dies.
Meanwhile aquaplaning is actually good in ice skating. The friction between the blades and the ice causes the ice to melt and a thin layer of water forms between the ice and the blades which reduces friction and allows the blades to move effortlessly across the ice.
So imagine yourself on some wheels on a rainy, slightly flooded day. And you're somehow rushing somewhere and you think it'd be good to pick up the speed. And so those wheels you're on, roll faster and faster until a layer of water forms underneath the wheels because the rotation and friction of the wheels are no longer enough to push the water out of the way. Then in the mist of rain and dark of storm, a huge immovable structure appears in front of you. and you have to stop immediately to avoid crashing onto the structure. But because the wheels are no longer in contact with the water there is virtually no friction between the wheels and the road and the brakes do not work. and so you are an unstoppable object approaching an immovable object at full speed.
And then you crash. The collision is completely inelastic. Which means you stick to the immovable object. And as much as we would like to think of the human body as a rigid-body, and we do consider it a rigid-body in most physics applications, it can actually be deformed. And so you crash into a million pieces and break apart.
And of course death occurs. This is perhaps how EunB and RiSe from kpop group Ladies' Code dies.
Meanwhile aquaplaning is actually good in ice skating. The friction between the blades and the ice causes the ice to melt and a thin layer of water forms between the ice and the blades which reduces friction and allows the blades to move effortlessly across the ice.
Comments
Post a Comment