Physics Problem Solver

Solve physics problems on motion, force, energy, electricity and waves, with the given values, formula and units written out. Try “a car accelerates from 0 to 20 m/s in 8 s; find the distance”.

Try an example:

How the Physics Problem Solver works

  1. List the known quantities with units and the unknown.
  2. Choose the equation that links them (v = u + at, s = ut + ½at², F = ma…).
  3. Substitute, solve and check the unit of the answer.

Frequently asked questions

Which equations of motion should I use?

Pick the one that contains the three variables you know and the one you want, out of v = u + at, s = ut + ½at² and v² = u² + 2as.

Why are units so important in physics?

They catch mistakes: if your answer for distance comes out in m/s, something has gone wrong.

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MathMate can make mistakes. Please double-check important steps and calculations.