GA, referring to the universal Gravitational constant (G), is a scalar.
This is because the gravitational constant only has a magnitude and no associated direction. Vector quantities require both magnitude and direction for their complete specification. Since G doesn't rely on direction, it's classified as a scalar.
Here's a breakdown:
- Scalar Quantity: A scalar quantity is fully described by its magnitude (size or amount). Examples include temperature, speed, and mass.
- Vector Quantity: A vector quantity is described by both magnitude and direction. Examples include velocity, force, and displacement.
- Gravitational Constant (G): Represents the strength of the gravitational force between two objects. Its value is approximately 6.674 × 10⁻¹¹ N⋅m²/kg². This value doesn't change based on direction; it's a universal constant.
Therefore, because the Gravitational constant (G) possesses only magnitude and lacks any directional component, it definitively qualifies as a scalar quantity.
