Understanding the Concepts
* Gravity: A force of attraction between any two objects with mass.
* Acceleration due to Gravity (g): The acceleration experienced by an object due to Earth's gravitational pull. On Earth, this value is approximately 9.8 m/s².
Formula
The force of gravity (F) is calculated using Newton's Second Law of Motion:
F = m * g
where:
* F = force of gravity (Newtons, N)
* m = mass of the object (kilograms, kg)
* g = acceleration due to gravity (meters per second squared, m/s²)
Calculation
1. Mass (m): 20 kg
2. Acceleration due to gravity (g): 9.8 m/s²
F = 20 kg * 9.8 m/s² = 196 N
Answer
The force of gravity acting on an object with a mass of 20 kg on Earth is approximately 196 Newtons.