Physics

**Timberridge** · 10-20-2020, 09:27 AM

https://thechive.com/wp-content/uplo...9-photos-3.mp4

This is fake, someone had to give this guy a push?

Discuss.

**Dantheman** · 10-20-2020, 09:34 AM

Leaf blower isn't doing shit, see Newton's 3rd law.

**The Tortoise** · 10-20-2020, 09:34 AM

Going downhill?

**Timberridge** · 10-20-2020, 09:39 AM

Originally Posted by The Tortoise

Going downhill?

It looks like FL. The guy is in a mop bucket. How fast can a mop bucket go down a hill in FL?

**From_the_NEK** · 10-20-2020, 09:46 AM

Originally Posted by Timberridge

It looks like FL. The guy is in a mop bucket. How fast can a mop bucket go down a hill in FL?

Add a treadmill and he'd certainly take off

**bobz** · 10-20-2020, 10:02 AM

Originally Posted by Dantheman

Leaf blower isn't doing shit, see Newton's 3rd law.

Not exactly. The bulk of the energy being applied is indeed cancelled out by being opposed within itself. But the leafblower is exerting a force into the umbrella, and some of which is very inefficiently redirected backwards (mostly sideways really, but let's grant that it's possible that there's a small net reverse force vector) by the umbrella. Of course, a leafblower is a weak stand-in for a jet engine, and the umbrella's scattering of that force applies it poorly (just pointing it backwards would have been a more effective use of this feeble "jet"). Anyway, yeah, obviously a downhill is the reason why he is maintaining enough speed to overcome road friction (oh wait, Florida; so maybe a tail wind could have helped too).

**bonewrenched** · 10-20-2020, 10:12 AM

Originally Posted by Dantheman

Leaf blower isn't doing shit, see Newton's 3rd law.

You clearly haven't seen addendum IV.II.a to Newtown's laws: "Does not apply to Florida Man"

**Dantheman** · 10-20-2020, 10:20 AM

Originally Posted by bobz

But the leafblower is exerting a force into the umbrella, and some of which is very inefficiently redirected backwards (mostly sideways really, but let's grant that it's possible that there's a small net reverse force vector) by the umbrella.

My gut says: forward acceleration derived from umbrella-vectored thrust < rearward acceleration from leaf blower pointed in the wrong direction

**Ted Striker** · 10-20-2020, 10:21 AM

If only that mop bucket was on a treadmill.

**Dantheman** · 10-20-2020, 10:21 AM

Originally Posted by bonewrenched

You clearly haven't seen addendum IV.II.a to Newtown's laws: "Does not apply to Florida Man"

Science!

**BmillsSkier** · 10-20-2020, 10:35 AM

Originally Posted by The Tortoise

Going downhill?

It's Florida, so, yeah?

At least after a few more beers it will be.

**The AD** · 10-20-2020, 10:38 AM

Originally Posted by Dantheman

My gut says: forward acceleration derived from umbrella-vectored thrust < rearward acceleration from leaf blower pointed in the wrong direction

Agreed. Think thrust-reversers on a jet engine.

**EWG** · 10-20-2020, 11:30 AM

Are you guys calling the New York Post a liar?!?!

https://nypost.com/2020/10/16/florid...wered-vehicle/

Longer facebook video: https://www.facebook.com/BrianEdward...17424064301461

Enjoy.

**MagnificentUnicorn** · 10-20-2020, 11:41 AM

I don’t have a leaf blower. One of you guys that do should try it out and report back.

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**Dantheman** · 10-20-2020, 11:49 AM

Originally Posted by The AD

Agreed. Think thrust-reversers on a jet engine.

I'm not sure why I even qualified that with the "my gut" part. Achieving net-forward thrust from that setup would inherently violate laws of thermodynamics and mechanical efficiency.

**The Suit** · 10-20-2020, 11:50 AM

point the leaf blower backwards and ditch the umbrella.

**nickwm21** · 10-20-2020, 11:53 AM

https://youtu.be/Ypa2SKpSD1E

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**MagnificentUnicorn** · 10-20-2020, 11:53 AM

In the link posted by EWG above it looks like there’s a tow line of sorts poorly edited out in some of the longer video.

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**Timberridge** · 10-20-2020, 11:54 AM

Originally Posted by MagnificentUnicorn

I don’t have a leaf blower.

Try it with a rake?

**MagnificentUnicorn** · 10-20-2020, 11:54 AM

Originally Posted by Timberridge

Try it with a rake?

This isn’t CA

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**EWG** · 10-20-2020, 11:57 AM

Originally Posted by Timberridge

Try it with a rake?

Definitely need a TR on this.

**old goat** · 10-20-2020, 11:59 AM

Originally Posted by Dantheman

I'm not sure why I even qualified that with the "my gut" part. Achieving net-forward thrust from that setup would inherently violate laws of thermodynamics and mechanical efficiency.

How does it violate thermodynamics? It converts electrical energy into mechanical energy (the movement of the bucket) and heat (the leaf blower gets hotter and there's friction between the wheels and axles and wheels and the ground. when the battery runs down he stops.

Originally Posted by The Suit

point the leaf blower backwards and ditch the umbrella.

Wouldn't work. He'd go too fast and crash.
It also wouldn't work with an American umbrella--it would shred.

**gravitylover** · 10-20-2020, 01:01 PM

I keep forgetting to try it, I don't have a mop bucket so figured I'd try with a skateboard and golf umbrella. I'll post up when I get to it. I know it'll work, I just know it