Newton Second Law Calculator
Work out newton second law instantly with clear inputs, formula shown and shareable results.
About Newton Second Law Calculator
Newton's second law states that net force equals mass times acceleration, so accelerating 12 kg at 3.5 m/s2 needs 42 N. The weight is shown alongside because it is the force gravity already applies - 117.7 N here - and any real push must overcome whatever fraction of it acts along the motion.
Formulas
Newton's second law
F = m x a
Weight
W = m x g
Worked example
With the default values below, Newton Second Law Calculator returns Net Force Required of 42.000. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Massminimum 0 kg
- 12 kg
- Acceleration
- 3.5 m/s2
Results
- Net Force Required
- 42.000 N
- Weight Of The Mass
- 117.680 N
- Same Force In Kilogram-Force
- 4.2828
- Acceleration In g
- 0.3569
Step by step
- 1Values used
- 2Newton's second law
- 3Weight
- 4Net Force Required= 42.000 N
- 5Weight Of The Mass= 117.680 N
- 6Same Force In Kilogram-Force= 4.2828
- 7Acceleration In g= 0.3569
Assumptions and limits
- The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
Is the force here the total or just my push?
It is the net force, the vector sum of everything acting. If friction opposes you, your push must be larger by the friction force.
Why is mass in kilograms and not weight?
Because inertia depends on mass, which does not change with location. Weight would give the wrong answer on the Moon.