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Falling ladders - why does this happen?
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44,340,033 Views • Jan 12, 2023 • Click to toggle off description
What happens when a chain ladder lands on a table? Great video and concept by Andy Ruina. Let me know if you want me to post a follow up explaining the answer.
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Views : 44,340,033
Genre: Education
Date of upload: Jan 12, 2023 ^^


Rating : 4.726 (99,259/1,347,405 LTDR)

93.14% of the users lieked the video!!
6.86% of the users dislieked the video!!
User score: 89.71- Overwhelmingly Positive

RYD date created : 2024-08-02T02:36:52.312545Z
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YouTube Comments - 46,332 Comments

Top Comments of this video!! :3

@cicalinarrot

1 year ago

Plot twist: he has no idea why that happened and he's genuinely asking, hoping that someone tells him in the comment.

446K |

@Annorach

1 year ago

->Shows us a cool video ->Asks us why it happened ->Leaves without an answer

31K |

@k.a.8725

1 month ago

Because of the chains. On impact, the individual chain links are twisting and therefore affecting other chain links further up and dragging them down.

880 |

@JoMama-np3og

1 month ago

Legend says the ladder on the right is still free falling

126 |

@heftylad

1 year ago

For those wondering, you see how the rods are alternating diagonal? When the downward part of the bottom rod hits the table, it bounces up, pulling the other side of the rod, and therefore that rope, downwards. Rinse and repeat with every rod, all pulling slightly downwards on the ladder, and now it's falling faster than the other.

16K |

@jeffstarkmann8468

1 year ago

"Alright, then. Keep your secrets"

7K |

@J053PH11

2 weeks ago

It's because the bars are not straight so when one hits it goes horizontal so when it tries to go horizontal it pulls one side which makes it faster from pulling itself

85 |

@rustythecrown9317

1 month ago

The table ladder realized it was almost home , so it sped up to get the best seat on sofa.

36 |

@diray3474

1 year ago

- defies physics -refuses to elaborate -disappears into the void

15K |

@c4t4ly5t

1 year ago

Gonna need a ladder to recover from that cliffhanger.

2.9K |

@misterno-ice-guy8082

1 month ago

The ladder on the right fell faster. The ladder on the left hit a table and didn't fall until the next day when a clumsy person walked past

7 |

@Infurum

1 month ago

"Now why did that happen?" >Refuses to elaborate >Leaves

2 |

@mikecurtis1111

1 year ago

Since the rungs are angled, the table is causing them to flatten out, which pulls down on the rung above it. This alternates left to right, gradually speeding it up. Edit: Never expected my comment to get so much attention. To elaborate a bit, one needs to understand that even the ladder on the right will speed up after it hits the ground, just like the one on the left. The only reason you see the difference is because the one on the left hit the table (higher ground) before the one on the right. Also, to better see the pulling effect, don't just watch the strings close to the table. Look closer to the top of the ladder, like two or three rungs from the top after the top comes into view. You can clearly see motion in the strings that is not seen in the ladder on the right.

11K |

@Bozza36

1 year ago

Since everyone has a long and over-complicated answer: - Ladder steps are angled. - One side of the ladder step hits the floor first. - Creates a torque (rotating force). - Torque creates tension in the shorter string. - The ladder falls slightly faster.

7.6K |

@CC-1.

2 weeks ago

because the diagonals make it so like it pulls even more and since the A side hits ground first it starts pulling first

1 |

@Zeke1460

1 week ago

Tension in the chains. When the one on the left hits the bottom, the fact that the rungs are all uneven means the short side gets pulled down, which pulls downward on all the remaining ladder above it.

1 |

@abhishekpatawari541

1 year ago

"It was me, Barry. I made them fall faster so you will fail your physics exam"

6.7K |

@deanvanzelst5011

1 year ago

I especially liked the part where he explained why that happened

11K |

@mr.nobody5028

1 month ago

This is going to be super useful for folks who drop ladders for a living

9 |

@Yezdani

1 month ago

@Veritasium I think two things may be contributing to making the left ladder fall faster. 1) Considering that this is not in a vacuum, drag/air resistance could be an important matter to consider. The topmost bar of the rope experiences a cumulative air resistance of the lower bars and some of the ropes below. There is a gradual reduction in cumulative air resistance on the left ladder, while there is no such reduction on the right one. The acceleration on the left ladder increases. 2) Every time each bar on the left ladder reaches the table, the bars being at an angle, the bar that touches the table pivots at their center point creating a pull on the shorter rope which visibly seems like a gradual speeding up of the fall

1 |

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