• ji17br
    link
    fedilink
    arrow-up
    1
    ·
    4 months ago

    My mistake, I didn’t check his math. I thought he was saying if you take distance apart at t(n) and subtract distance apart at t(n-1) you will get distance/sec.

    • SpaceNoodle@lemmy.world
      link
      fedilink
      arrow-up
      1
      ·
      4 months ago

      Only if you divide by time. Including units is an essential sanity check.

      Also, the rest of the math needs to be correct.

      • ji17br
        link
        fedilink
        arrow-up
        1
        ·
        4 months ago

        Well that’s my point. The answer is correct in this specific case, because it’s already “built-in” so to speak.