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Physics

Force Mass Acceleration Calculator (F = ma)

Solve Newton's second law F = ma for any of the three quantities.

Result

Force (F)

50 N

Mass (m)

10 kg

Acceleration (a)

5 m/s²

Concept

Newton's Second Law states that a net force applied to a body produces acceleration proportional to the force and inversely proportional to the mass.

F = ma in vector form — force and acceleration are both vectors; mass is a scalar. The direction of acceleration is always the same as the net force.

Mass is an intrinsic property of a body measured in kg, while weight is the gravitational force acting on it (weight = mg, in N). On the Moon, your mass stays the same but your weight is 1/6th of Earth's.

Formula

F=m × a
m=Fa
a=Fm

Variables

FN
Net force acting on the body.
mkg
Mass of the body.
am/s²
Acceleration produced.