This preset example needs no account, makes no AI requests, and has no usage limits. Open the real tool separately when you want to use your own material; its normal limits and allowances apply.

All tutorials

See why the cart keeps speeding up

Watch a narrated board explanation, control playback, and answer a checkpoint about the same source.

Example view

A silent prepared walkthrough. The interactive view offers the same example controls.

Steps follow the video. Select a step to jump to it.

Step 1 of 6

In this walkthrough

Review the sample material

The walkthrough starts with prepared material in the source editor.

Continue in the real tool when you’re ready.

About this toolOpen real tool
See the app screen
See the sample source

Motion and energy notes

A 0.5 kg cart starts from rest under a constant horizontal net force of 2 N. Newton’s second law gives a = F / m = 4 m/s². After 3 s, its speed is 12 m/s and its displacement is 18 m. The force does 36 J of work over that displacement, equal to the increase in kinetic energy. If the same net force continues, the cart keeps accelerating; its speed does not stop increasing at 3 s.

The complete walkthrough

  1. Open Visual tutor

    Choose Visual tutor, then review the example topic and notes in the editor.

  2. Create the lesson

    Choose Create visual lesson. The ready sections become playable while later sections and optional artwork prepare.

  3. Follow the explanation

    Play or pause the lesson and switch between the board views to inspect the motion and equations.

  4. Test and ask

    Answer the checkpoint, then ask a focused follow-up about the explanation. A follow-up starts a separate request.