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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 1 year ago

Falling

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Falling

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fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 1 year ago
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  • pikmeir@lemmy.world
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    1 year ago

    For anyone wondering it’s because the bowling ball slightly pulls the earth faster toward itself. This amount is too small to possibly measure. But imagine if the bowling ball were the size of another Earth and it’s easier to see why it happens.

    • TheControlled@lemmy.world
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      1 year ago

      Thanks for the non-jargon version

    • Tar_Alcaran@sh.itjust.works
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      1 year ago

      When you drop them at the same time, it doesn’t matter though.

  • brown567@sh.itjust.works
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    1 year ago

    This is fascinating! Both of them accelerate toward the earth at the same rate, but because of the bowling ball’s greater mass, the EARTH accelerates faster toward the bowling ball than it does toward the feather, so it’s imperceptibly faster XD

    • chicken@lemmy.dbzer0.com
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      1 year ago

      But they are being dropped at the same time for dramatic effect, so the earth will also be accelerating towards the feather at bowling ball speeds because the feather is next to the bowling ball, therefore they still land at the same time.

      • Dwomen@lemmy.dbzer0.com
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        1 year ago

        That’s only be true if the feather was in the same position as the ball. Otherwise, the earth is moving ever so slightly more towards the ball.

        • mexicancartel@lemmy.dbzer0.com
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          1 year ago

          You are forgetting the sun. The earth turns in the direction of sun ever so slightly so if you align the feather next to the ball in the side of the sun, then probably the feather falls faster

    • iz_ok@lemmynsfw.com
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      1 year ago

      Can someone explain how the Earth accelerates towards an object? Is this just because objects with mass attract things?

      • candybrie@lemmy.world
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        1 year ago

        You got it.

      • mexicancartel@lemmy.dbzer0.com
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        1 year ago

        Yes. And that force is proportional to acceleration so it accelerates earth

    • Professorozone@lemmy.world
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      1 year ago

      Thank you.

  • Tudsamfa@lemmy.world
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    1 year ago

    xkcd

  • Heavybell@lemmy.world
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    1 year ago

    There’s a video of astronauts doing the heavy thing vs feather in vacuum experiment. I think it was a hammer rather than a bowling ball tho.

    • thessnake03@lemmy.world
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      1 year ago

      https://nssdc.gsfc.nasa.gov/planetary/image/AS15_Ham_feath_drop3.mp4

    • TonyTonyChopper@mander.xyz
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      1 year ago

      they did it on the moon

      • Heavybell@lemmy.world
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        1 year ago

        Yeah

  • JohnDClay@sh.itjust.works
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    1 year ago

    Does the bowling ball ever so slightly increase the gravitational constant because of it’s greater mass? Is that what the right guy is getting at?

    • dream_weasel@sh.itjust.works
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      1 year ago

      The gravitational constant G, no, the mutual gravitational force between the earth and the ball approximated as g, yes.

      Edit: Since this is a little pedantic, G is used to calculate g.

      • Faresh@lemmy.ml
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        1 year ago

        But how would that make the bowling ball fall faster? F = G × m₁ × m₂ / r² and F = m₁ × a ⇒ a = F / m = G × m₂ / r², where m₁ is the mass of the ball and m₂ the mass of the planet. So the gravitational acceleration of a bowling ball is independent of its mass (assuming the planet has way more mass than a bowling ball).

        • Patapon Enjoyer@lemmy.world
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          1 year ago

          I guess the bowling ball attracts the Earth towards it, shortening the distance so it hits the ground faster

    • itsnotits@lemmy.world
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      1 year ago

      because of its* greater mass

  • BilboBargains@lemmy.world
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    1 year ago

    This only true when you drop it like it’s hot.

  • 4am@lemm.ee
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    1 year ago

    More like failing

  • Thunderwolf@lemmy.world
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    1 year ago

    I haven’t seen anyone mention this yet, so here’s how I understand it. The feather falls slower in non-vacuum conditions because it reaches its terminal velocity much more quickly than the bowling ball.

    Edit: terminal velocity: https://en.m.wikipedia.org/wiki/Terminal_velocity

    Also edit: https://ucscphysicsdemo.sites.ucsc.edu/physics-5a6a/coin-and-feather/#:~:text=Because the feather has a,small%2C the feather falls slowly.

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