* Gravity depends on both mass and distance: The force of gravity depends on the mass of the object *and* the mass of the object it's attracted to (like the Earth). It also depends on the distance between their centers.
* Newton's Law of Universal Gravitation: The formula for calculating the force of gravity is:
F = G * (m1 * m2) / r²
Where:
* F is the force of gravity
* G is the gravitational constant (approximately 6.674 × 10⁻¹¹ N⋅m²/kg²)
* m1 is the mass of the first object (in this case, 2 kg)
* m2 is the mass of the second object (e.g., the Earth)
* r is the distance between the centers of the two objects
To calculate the force of gravity on your 2 kg object, you need the following:
1. The mass of the Earth: Approximately 5.972 × 10²⁴ kg
2. The radius of the Earth: Approximately 6,371 km (convert to meters: 6,371,000 m)
Example:
Let's calculate the force of gravity on a 2 kg object at the Earth's surface:
F = (6.674 × 10⁻¹¹ N⋅m²/kg²) * (2 kg) * (5.972 × 10²⁴ kg) / (6,371,000 m)²
F ≈ 19.6 N
Important Note: This calculation is an approximation. The actual force of gravity can vary slightly depending on your location on Earth (due to variations in altitude and density).
