Lesson plan

Impact depth

The impact depth of a projectile is the distance it penetrates into a target before coming to a stop. The problem was first treated mathematically by Isaac Newton in book II, section 3 of his Principia Mathematica, first published in 1687, as part of his study of the motion of bodies in resistive media.

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Article summary

The impact depth of a projectile is the distance it penetrates into a target before coming to a stop. The problem was first treated mathematically by Isaac Newton in book II, section 3 of his Principia Mathematica, first published in 1687, as part of his study of the motion of bodies in resistive media.

Key claims

  1. publication date: 1687 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the publication date is "1687". What evidence would count against this claim?
  3. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  4. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1302978821

Key claims and bibliography are generated from the same tracked claims and sources as the article page.