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If the force of attraction between the earth and an apple separated by distance 'x' is 'F', then the force acting on the same apple kept at a distance
Question

If the force of attraction between the earth and an apple separated by distance 'x' is 'F', then the force acting on the same apple kept at a distance '2x' will be ________.

A.

F/2

B.

F/4

C.

4F

D.

2F

Correct option is B

Correct Answer:B. F/4

Explanation:
The force of attraction between two objects is governed by Newton's Law of Gravitation, which states:


where:

  • F = Gravitational force
  • G = Gravitational constant
  • m1m2​ = Masses of the two objects
  • r = Distance between the objects

If the distance between the objects is doubled (from x to 2x), the force becomes:

This simplifies to:

F=F4F′=\frac{F}{4}​​

Key Insight:

  • Gravitational force is inversely proportional to the square of the distance. Doubling the distance reduces the force to one-fourth of its original value.

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