Calculator Form
Formula Used
Total distance traveled is the integral of speed over time.
Total distance: Distance = ∫ |v(t)| dt
Displacement: Displacement = ∫ v(t) dt = s(t₂) − s(t₁)
Average speed: Average speed = total distance ÷ total time
Average velocity: Average velocity = displacement ÷ total time
Position-based motion: v(t) = ds/dt, so distance uses the absolute value of the derivative.
Numerical method: This page applies the trapezoidal rule across the chosen interval to estimate cumulative displacement and total distance.
How to Use This Calculator
- Select a motion model that matches your physics problem.
- Enter the start time, end time, and number of integration steps.
- Type the required coefficients for the selected model.
- Enter your preferred time and distance units.
- Click the calculate button to generate distance, displacement, table values, and the graph.
- Use the CSV button for spreadsheet export and the PDF button for printable reporting.
Example Data Table
Example model: v(t) = 2 + 0.5t from 0 to 4 seconds.
| Time (s) | Velocity (m/s) | Cumulative Distance (m) |
|---|---|---|
| 0 | 2 | 0 |
| 1 | 2.5 | 2.25 |
| 2 | 3 | 5 |
| 3 | 3.5 | 8.25 |
| 4 | 4 | 12 |
Frequently Asked Questions
1. What does total distance mean in calculus-based motion?
Total distance adds every small path segment traveled. It always stays non-negative because the calculation uses speed, which is the absolute value of velocity over time.
2. How is distance different from displacement?
Displacement measures net change in position from start to finish. Total distance measures the entire path length, even when the object reverses direction.
3. Why does the calculator use absolute velocity?
Velocity can be positive or negative. Distance must stay positive, so the calculator integrates |v(t)| instead of v(t) when computing traveled length.
4. When should I use more integration steps?
Use more steps when the motion changes quickly, oscillates, or contains steep curvature. Higher step counts usually improve numerical accuracy for complex models.
5. Can I calculate from a position function?
Yes. The calculator differentiates the position model to estimate velocity, then integrates the absolute velocity over the selected time interval.
6. What does the direction changes value represent?
It estimates how many times velocity switches sign. That indicates approximate reversals in motion and helps explain why distance may exceed displacement.
7. Does the graph show both motion rate and traveled length?
Yes. The Plotly graph displays velocity over time and cumulative distance over the same interval, helping you compare changing motion with accumulated travel.
8. Can I export the results for reports or analysis?
Yes. Use CSV for spreadsheet analysis and PDF for printable summaries. Both options work with the calculated results and the visible table.