Is it better to fall on concrete or water?

Falling on concrete is more dangerous. Falling on concrete is more dangerous than falling on falling on water portal.

numerade.com - 4. Why is a 10-m fall onto concrete far more dangerous than a ... - Numerade

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Video Transcript

Hello students in discussion we have given why it is dangerous to fall on it corn agreed. Mhm rather than on water, but it is dangerous to fall on concrete rather than in water. Heavy. Say Hi. So here we can see that in case so concrete, Whatever velocity we have acquired at this point will become zero very in very short interval of time, that is. The delta T. Will be very small here the delta T stand for the time in which the velocity acquired by us will be zero while in case of water, whatever velocity I have acquired it will become zero in very large time. So the delta T will be large. Change in momentum in both cases will be seen. Mhm. So, changing momentum in both case will be the same poverty same because water required by us at this point and it finally becomes zero. So initial and final velocity in both cases the same. So changing momentum. Now we know Newton's second law of motion that is rate of change of linear momentum is equal to course, as the changing linear momentum is. So, I can write force imparted by the concrete wall will be inversely proportional to timing. Here, we can also write that the force imparted by water. Here we can write that the force imparted by a concrete wall and this is a force imparted by porter will be equal to the MS martin as you can see that delta T is very small. This implies that force applied by the contract award will be very hard while here we can see that the time in which our momentum has changed its comparatively large, So forth, imparted by water will be comparatively low. So this is the reason. So this is the reason why falling on concrete. Falling on concrete is more dangerous. Falling on concrete is more dangerous than falling on falling on water portal. The most important thing is here from same height because the momentum change in both cases are same, but the time it's been, momentum changes different here. We can see that in very small interval of time The momentum becomes zero while here the time was very very hi. So the force imparted by the water on the body, on the object, on the person ability very less. I hope you and distributed Thank you.

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What's the average time a human can hold their breath?

1 to 2 minutes The longest instance of someone holding their breath without inhaling pure oxygen beforehand is 11 minutes and 34 seconds. However, most people can only safely hold their breath for 1 to 2 minutes. The amount of time you can comfortably and safely hold your breath depends on your specific body and genetics.

webmd.com - Is It Safe to Hold Your Breath? - WebMD

There are many reasons why you may hold your breath. You may hold your breath while swimming, before playing a wind instrument, or just to see how long you can hold it. It's hard to hold your breath for long periods of time because your body needs oxygen, and it gets it by breathing. You don't have to think about breathing. Your body breathes automatically. Holding your breath goes against what your body is designed to do. What Happens When You Hold Your Breath? The first thing that happens when you hold your breath is oxygen levels decrease. Then, carbon dioxide levels increase because your body gets rid of that gas by breathing out. This state is called hypoxia. After just a minute or two, your cells start to behave differently than they normally would. This can affect all of your organs. If you hold your breath for too long it can cause your heart to start beating irregularly. It can damage your kidneys and liver. Holding your breath also causes the amount of carbon dioxide building up in your body to cross the blood-brain barrier. Your brain notices this change and increases your body's desire to inhale and exhale. If you still don't breathe at this point, you can have a seizure, faint, or even injure your brain.

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