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Course: Bridge Course Class 11th Physics > Unit 4

Lesson 1: Universal law of Gravitation
Science
Bridge Course Class 11th Physics
Gravitation
Universal law of Gravitation
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Problem

Imagine two pairs of books.
In the first pair, two books of mass m1 and m2 are separated by the distance r, resulting in a gravitational force F1.
In the second pair, two books of mass 2m1 and 4m2 are separated by the distance 2r, resulting in a gravitational force of F2.
The relationship between these two forces can be written as F2=nF1.
In the expression F2=nF1, what is the value of n?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi