Education
Newtons Second Law Calculator (F = ma)
Newtons second law of motion. Calculate force in Newtons (kg·m/s²), or rearrange for mass or acceleration.
Result
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- Formula
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- Units
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- In lbf (if force)
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FAQ
What is 1 Newton? +
The force needed to accelerate 1 kg by 1 m/s². Roughly the weight of a small apple in gravity (~0.225 lb).
Where does F=ma come from? +
Newtons Principia (1687). It applies to constant-mass objects in classical mechanics; relativistic + variable-mass cases (like rockets) need modifications.