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Force Due To Gravity Formula:
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Force due to gravity is the force exerted on an object by gravity, calculated as the product of an object's mass and the acceleration due to gravity. This fundamental physics concept is essential for understanding weight and gravitational interactions.
The calculator uses the force due to gravity formula:
Where:
Explanation: The formula calculates the gravitational force acting on an object, which is commonly referred to as the object's weight.
Details: Calculating force due to gravity is essential in physics, engineering, and everyday applications. It helps determine weight, structural loads, and is fundamental to understanding gravitational interactions in various contexts.
Tips: Enter mass in kilograms and gravity in m/s². Standard Earth gravity is 9.8 m/s², but this can vary on different celestial bodies. All values must be positive numbers.
Q1: What's the difference between mass and weight?
A: Mass is the amount of matter in an object (measured in kg), while weight is the force of gravity acting on that mass (measured in N).
Q2: Why is Earth's gravity 9.8 m/s²?
A: This value represents the average acceleration due to gravity at Earth's surface, which varies slightly depending on location and altitude.
Q3: How does gravity differ on other planets?
A: Gravity varies based on a celestial body's mass and radius. For example, Mars has about 3.7 m/s² gravity, while Jupiter has about 24.8 m/s².
Q4: Can I use this calculator for objects in free fall?
A: Yes, this calculates the gravitational force acting on an object, which is relevant for objects in free fall (though other forces may also be present).
Q5: How is this related to Newton's law of universal gravitation?
A: F = m × g is a simplified version of Newton's law (F = G × m₁ × m₂ / r²) applied specifically to objects near Earth's surface.