To calculate gravitational force, the masses of the objects must be in kilograms (kg), the distance between their centers in meters (m), and the gravitational force will be expressed in newtons (N).

Answer 1

That's correct! The gravitational force between two objects can be calculated using Newton's law of universal gravitation, which states:

\[ F = G \frac{m_1 m_2}{r^2} \]

where:

• \( F \) is the gravitational force in newtons (N),
• \( G \) is the gravitational constant, approximately \( 6.674 \times 10^{-11} , \text{N} \cdot \text{m}^2/\text{kg}^2 \),
• \( m_1 \) and \( m_2 \) are the masses of the two objects in kilograms (kg),
• \( r \) is the distance between the centers of the two masses in meters (m).

Make sure to use the correct units to ensure that the resulting force is calculated accurately in newtons.