Solve a formula for any letter

Rearrange F = ma, v = u + at, E = ½mv² and P = F/A step by step.

Solve for any letter

Interactive

Newton's second law: start from
$F = m\,a$
1m is multiplied by a.
$F = \textcolor{#f43f5e}{m}\,a$
2Undo '× a': divide both sides by a.
$\frac{F}{\textcolor{#ef4444}{a}} = \frac{\textcolor{#f43f5e}{m}\,a}{\textcolor{#ef4444}{a}}$
3The a's cancel on the right. Swap sides to read it.
$\textcolor{#f43f5e}{m} = \frac{F}{a}$

mass12kg

F60N

a5m/s²

Formula

Solve for

F: force60 Na: acceleration5 m/s²

The math, with your numbers

m = 12\ \text{kg}

Put it back into the original formula: both sides come out equal.

Want to know why it behaves like this?

The lesson “Rearranging Formulas” explains it step by step: How do I turn F = ma into a formula for m?