So there’s this video I just watch. Can someone explain to me how this apple floats in place, and why it doesn’t drop or fly somewhere else? And why is it when the RPM of the apple gets higher it explodes?
Video:
[Apple grenade](https://youtu.be/HcNsQyDaVng)
In: Physics
I watched the video without sound, so I don’t know if they said it but:
The thing the guy is holding is a valve for compressed air. So a jet of air shoots out the end and hits the apple. The apple weighs just enough to have the air push hard enough to balance the weight and kleep it afloat.
The *explosion* is less an explosion and more a being ripped apart.
I bet you did it as a child too. Eithe on an office chair or one of those spinning carrousel.
Everybody holds on to the beans and one kid runs around (later standing still) and spinning the carrousel faster and faster.
At one point you just can’t hold on anymore and you fly out and land in the dirt laughing.
This is very much what is happening here. The centrifugal force (the force that you feel is pulling you outwards on the carrousel, or pushing you into the side in a car going around a curner) is just so big that the apples doen’t hold together anymore.
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