How does the speed of an object increase its heat? For example how fast do I need to throw a water bottle for it to boil in the air?

Question

So as stated above, how fast would I need to throw a water bottle (let’s say 20oz.) for it to start boiling, and why does it/ will it even boil?

In: Physics

Answer 1

You might enjoy this:

[https://what-if.xkcd.com/28/](https://what-if.xkcd.com/28/)

As it says in that article, things heat up when they move really quickly through the air. It also mentions that this effect kicks in at around twice the speed of sound, which would be about 1500 mph at sea level.

But your throw would have to be much faster even than that, and I’ll let someone else handle that math.