Name: 弾丸ブロック実験 (Bullet Block Experiment)
Uploaded: 2021-01-14T10:25:42.000Z
Duration: 1 min 52 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

現在進行形

Alright here is the setup: I have a rifle mounted vertically and we're going to shoot

a bullet into this block, right into the middle of it.

to 不定詞

So obviously the block is going to go flying into the air.

But we're going to do this again and instead of firing the bullet right into the middle

of the block, we're going to shoot it off to one side and I want you to make a prediction.

Will that spinning block, when we shoot hit it to one side, will it go the same height

OK so versus being shot in the middle, when you shoot on the side is the question, right?

It depends on if the bullet stays in the block - and I'm assuming it does?

It does stay in the block, yes, I'll guarantee you that.

I'm purely basing it on just like an instinct that I have.

I just feel like you're trying to trick us and that it's going to do something that we

I feel like the obvious answer is not as high so I'm going to say higher.

I'll say higher, but it's going to like fly in a different direction or something.

So you have angular momentum, which is L, and you have translational momentum, which

is P. When you hit it in the middle of the block, the block doesn't really spin at all

But when you hit it on the side of the block, it's going to be spinning so it's going to

have imparted some kinetic energy so there won't be as much potential energy.

So the total energy of the system basically has to stay constant and the kinetic plus

potential, which would be the height it goes to will have to be constant so if it's spinning

it has kinetic energy, it can't go as high.

So my prediction is it'll go up, not as high but it'll spin more if it's hit to the side.

I want you to think which do you think is the most reasonable and then click one of

Make your prediction in three, two, one...

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弾丸ブロック実験 (Bullet Block Experiment)

potential

assume

obvious

instinct