See it to believe it.

Type a physics problem in plain English and get a worked solution, interactive simulation, and graphs, not just an answer.

y = h₀ + v₀t − ½gt²
1
Describe it

A physics problem, in plain English.

2
See it solved

A worked-out solution, an interactive simulation, and graphs of what's happening.

3
Explore it

Play with the timeline, graph any quantity, or change the parameters.

A few example topics