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Force Calculator
m/s²
Force (F = m × a)
98.1 N
Mass
10 kg
Acceleration
9.81 m/s²
Force
98.1 N
F = m × a
Newton's Second Law of Motion
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How to Use the Force Calculator
- Select what you want to calculate
- Enter the known values
- View the calculated result
Force Formulas
- Force = Mass × Acceleration
- Mass = Force ÷ Acceleration
- Acceleration = Force ÷ Mass
- Weight = Mass × Gravity (9.81 m/s²)
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Frequently Asked Questions
What is Newton's Second Law?
F = m × a. Force equals mass times acceleration. It's the foundation of classical mechanics.
What is a Newton?
One Newton (N) is the force needed to accelerate 1 kg at 1 m/s². It's roughly the weight of a small apple.
How do I calculate weight?
Weight = mass × gravity. On Earth, g ≈ 9.81 m/s². A 1 kg mass weighs about 9.81 N.
What's the difference between mass and weight?
Mass is the amount of matter (kg). Weight is the gravitational force on that mass (N). Your mass is constant; weight changes with gravity.