Calculation Result
Motion Graphs
Graphs use constant acceleration. Unsupported modes use a five-second illustrative interval.
Calculation History
| Time | Mode | Solved variable | Result | SI acceleration |
|---|---|---|---|---|
| No calculations yet. | ||||
How to Use the Calculator
- Select the calculation mode matching your known values.
- Choose the variable that the calculator should find.
- Enter every required value and select its unit.
- Choose the result unit and precision settings.
- Select Calculate Acceleration to view the full solution.
Example Data
| Scenario | Known values | Typical result |
|---|---|---|
| Car acceleration | 0 to 27.78 m/s in 8 s | 3.4725 m/s² |
| Vehicle braking | 25 to 0 m/s in 5 s | −5 m/s² |
| Falling object | Gravity near Earth | 9.80665 m/s² downward |
| Aircraft take-off | 0 to 80 m/s in 30 s | 2.6667 m/s² |
| Lift motion | 0 to 3 m/s in 2 s | 1.5 m/s² |
| Sprint start | 0 to 10 m/s in 2.5 s | 4 m/s² |
| Rotating wheel | 12 m/s at 0.4 m radius | 360 m/s² |
| Applied force | 500 N on 100 kg | 5 m/s² |
| Moon gravity | Reference acceleration | 1.62 m/s² |
| Vector sensor | 3, 4, and 12 m/s² | 13 m/s² |
Acceleration Concepts
Acceleration measures velocity change over time. Velocity includes both speed and direction. Therefore, turning motion can involve acceleration.
Average acceleration covers a complete time interval. Instantaneous acceleration describes one moment. Constant-acceleration formulas require a steady value.
Positive and negative signs indicate direction. They do not automatically indicate speeding up. Compare velocity and acceleration signs together.
Vector acceleration includes separate axis components. Its magnitude combines those components geometrically. Direction angles describe its spatial orientation.
Frequently Asked Questions
What is acceleration?
Acceleration is the rate at which velocity changes with time. It includes both magnitude and direction.
What is the SI unit of acceleration?
The SI unit is metres per second squared. It is written as m/s².
Can acceleration be negative?
Yes. Negative acceleration points in the selected negative direction. It does not always mean an object is slowing down.
What is the difference between acceleration and deceleration?
Acceleration describes any velocity change. Deceleration usually means the speed magnitude is decreasing.
How is g-force related to acceleration?
One standard gravity equals 9.80665 m/s². Divide acceleration by that value to obtain g-force.
What is centripetal acceleration?
Centripetal acceleration points toward the centre of circular motion. It changes velocity direction even when speed stays constant.
Why can time not be zero?
Acceleration formulas divide by time or time squared. A zero interval makes those expressions undefined.
Does mass affect acceleration?
For a fixed net force, greater mass produces less acceleration. This follows Newton’s second law.
What does zero acceleration mean?
Zero acceleration means velocity is constant. The object may still be moving at a steady speed and direction.