Chain Drop Answer 2

2m read

·Nov 10, 2024

All right, are you ready for the moment of truth? Let's drop these two objects at exactly the same time and see which one hits the ground first. Ready? 3, 2, 1. Wow! Did you see that? The one connected to the chain landed just before the other free weight. I'd like to show this in slow motion so you can see that the weights are accelerating at just slightly different rates.

[Music] Go! Oh, why did that happen? I mean, most people, most students of physics, would know that all objects on Earth's surface should accelerate down at the same rate: 9.8 m/s squared. But in this case, what happens is the chain actually whips the weight around, so it accelerates at a rate greater than the acceleration of objects when in free fall. That's a pretty remarkable result.

I want you to think about the bend in the chain as the weight descends. The chain goes from falling to becoming stationary, so it's accelerating up. The tension required to accelerate the chain up actually pulls down on the weight, accelerating it at a rate greater than the acceleration due to gravity, and that's why it hits the ground first.

Now, this actually happens to bungee jumpers. If the weight of the rope is appreciable, they will actually accelerate down at a rate faster than free fall, faster than 9.8 m/s squared. When I went bungee jumping, I was aware of this. What is actually true is that as you fall, your acceleration will be greater than free fall, and that's due to some, uh, effects of the way the rope pulls on you.

So I'll do an explanation of that later when I'm not scared out of my mind. Oh my God! I couldn't figure out what the acceleration was as I was going down, but you know, it fell high. It fell very fast—very great increase in your rate of speed. So, oh my God, that was fast! Loved it!

BEHIND THE SCENES Of Shark Tank During COVID | Kevin O'Leary

Calculating internal energy and work example | Chemistry | Khan Academy

View All

THE POWER OF YOUR GUT INSTINCT AND HOW TO USE IT | STOICISM INSIGHTS

Welcome back to Stoicism Insights, where we embark on a journey of self-discovery and wisdom. Today we’re delving into the depths of intuition and Stoic philosophy, uncovering secrets that will transform the way you navigate life’s challenges. Join me as …

First Fish of the Morning | Wicked Tuna: Outer Banks

I was dozing off. I was so comfortable last night. Oh yeah, the life foam down there, mother’s arm. Oh, it is. I know it is. When we stayed out here last night looking for a bite, now if we could get a bluefin tuna, we’d be closer to doing what we came do…

Fundraising Fundamentals By Geoff Ralston

We’re gonna have two lectures on fundraising: the this one, which is going to be a high-level overview, which I’ll do, and then next week my partner Kirsty will do a deep dive into the mechanics of fundraising, which are really fun, so you wouldn’t want t…

Verifying inverse functions from tables | Precalculus | Khan Academy

We’re told the following tables give all of the input-output pairs for the functions s and t. So we see this first table here, we have some x’s, and then they tell us what the corresponding s of x is. Then, in this table, we have some x’s, and they tell u…

Buffett & Munger Expose Investment Lies: Real Returns vs. Pure Fiction

Speaker: We don’t formally have discount rates. I mean, every time I start talking about all this stuff, Charlie reminds me that I’ve never prepared a spreadsheet, but I do. You know, in in effect, in my mind, I do. But uh we are going to want to get a si…

Secrets from Longevity Experts l Transform Your Health and Extend Your Lifespan

I think of all the money I’ve invested in so many businesses over the years, and I didn’t invest enough in myself, which is the most important business I have. So I’m obviously trying to fix that these days. Mr. Wonderful here, back in the United Arab Emi…

Chain Drop Answer 2

More Articles