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Newton’s Second Law Calculator

🧱 Forces & Newton’s laws. Use the Newton’s second law formula to find net force, mass, acceleration: pick the value you want, type the others, and the answer updates as you go.

F=maF = ma
Net force20 N

Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.

What each letter means

QuantityUnit
Net forceN
Masskg
Accelerationm/s²

Worked example

Find the net force when Mass = 10 kg, Acceleration = 2 m/s².

Using F = ma: Net force = 20 N.

Frequently asked questions

What is the formula for Newton’s second law?

F = ma.

What do the letters stand for, and what units are used?

Net force in N, Mass in kg, Acceleration in m/s².

How do you calculate net force?

Put the values into F = ma. For example, with Mass = 10 kg, Acceleration = 2 m/s², net force = 20 N.

Can I solve for a different value?

Yes. In the calculator above, pick the circle next to any value (net force, mass, acceleration) and fill in the others: it rearranges the formula for you.

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