alleryNewton was encouraged to write his great work by his friend:
ATycho Brahe
BEdmund Halley
CRobert Hooke
DJohannes Kepler
Answer & Solution
Correct answer: B. Edmund Halley
1. Newton had set his discoveries aside for years.
2. A friend pressed him to write them up in 1684.
3. That friend was Edmund Halley.
_Source: syllabus Physics Part I, Chapter 5, Laws of Motion._
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