Mechanics
Newton's Second Law
The net force equals mass times acceleration. Newton's fundamental law.
Variables
FN
Net force
Sum of all forces
mkg
Mass
Inertial mass
am/s²
Acceleration
Resulting acceleration
Derivation
Fundamental principle. More generally: F = dp/dt.
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Common questions
What is the Newton's Second Law formula?
Newton's Second Law is written F = ma. The net force equals mass times acceleration. Newton's fundamental law. It belongs to Mechanics, under Dynamics.
What are the units in F = ma?
In SI units, F is net force, measured in kg·m/s²; m is mass, measured in kg; a is acceleration, measured in m/s².
How is the Newton's Second Law formula derived?
Fundamental principle. More generally: F = dp/dt. The result is F = ma.