this post was submitted on 12 Jan 2024
251 points (94.7% liked)
Humor
7452 readers
8 users here now
"Laugh-a-Palooza: Unleash Your Inner Chuckle!"
Rules
Read Full Rules Here!
Rule 1: Keep it light-hearted. This community is dedicated to humor and laughter, so let’s keep the tone light and positive.
Rule 2: Respectful Engagement. Keep it civil!
Rule 3: No spamming!
Rule 4: No explicit or NSFW content.
Rule 5: Stay on topic. Keep your posts relevant to humor-related topics.
Rule 6: Moderators Discretion. The moderators retain the right to remove any content, ban users/bots if deemed necessary.
Please report any violation of rules!
Warning: Strict compliance with all the rules is imperative. Failure to read and adhere to them will not be tolerated. Violations may result in immediate removal of your content and a permanent ban from the community.
We retain the discretion to modify the rules as we deem necessary.
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
This is related to the "airplane on a treadmill" myth (go watch).
Preservation of momentum
I wanna say it's incorrect, but really I'll say it's exaggerated. The man on the diving board is going to continue moving forwards just like the rest of the gear, he's not going to suddenly stop on relation to the road surface. However, he is going to be affected by wind resistance (which scales ~~exponentially~~ quadratically with speed) so he will need to make a good forward leap in order to not fall behind because of that. If he doesn't, he would be effective jumping backwards - but not as far as depicted (unless the car is travelling really, really fast).
If the pool (and indeed, the man) were encased within an envelope to protect from that wind resistance, he would be entirely unaffected. So there.
It's not just how fast the car is going. How high the diver jumps (how long he's in the air) also factors in.
Unless the driver tosses it in neutral, the engine is also still doing work even if keeping the car's speed constant whereas when the diver jumps, I think he stops being a part of that system he will slow down compared to the van, right? How much this affects the landing of the jump depends upon speed, wind speed, etc.
Drag scales quadratically with speed, not exponentially.
Thx, fixed. 👌