Newton's law og gravitation holds good for

Options

A. small bodies only
B. terrestrial bodies only
C. big bodies only
D. all types of bodies

Answer

**Step-by-Step Solution:**

1. **Understanding Newton's Law of Gravitation**:
Newton's law of gravitation states that every point mass attracts every other point mass in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. The formula is given by:
\[ F = \frac{G \cdot m_1 \cdot m_2}{r^2} \]
where \( F \) is the gravitational force, \( G \) is the gravitational constant, \( m_1 \) and \( m_2 \) are the masses of the two bodies, and \( r \) is the distance between their centers.

2. **Applicability of the Law**:
The question asks for which types of bodies Newton's law of gravitation holds true. The law applies to all bodies that have mass, regardless of their size. This includes small bodies, large bodies, terrestrial bodies, and celestial bodies.

3. **Example of Different Masses**:
Consider two bodies with masses \( m_1 \) and \( m_2 \). According to the law, they will exert a gravitational force on each other. For example, if \( m_1 \) is a planet and \( m_2 \) is an apple, both will attract each other with a force given by the formula. However, due to the vast difference in their masses, the apple will move towards the planet while the planet remains stationary.

4. **Conclusion**:
Since the law applies universally to any two masses, regardless of their size, we conclude that Newton's law of gravitation holds good for **all types of bodies**.

**Final Answer**: Newton's law of gravitation holds good for **all types of bodies**.

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