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Kinematics Calculator
Motion & Mechanics Calculations
m/s
m/s
m/s²
s
How to Use
Kinematic Equations
Use these equations to solve motion problems involving constant acceleration.
The Four Equations
- v = u + at: Relates velocity, acceleration, and time
- s = ut + ½at²: Relates displacement, initial velocity, acceleration, and time
- v² = u² + 2as: Relates velocities, acceleration, and displacement (no time)
- s = (u+v)t/2: Uses average velocity to find displacement
Variables
- u: Initial velocity (m/s)
- v: Final velocity (m/s)
- a: Acceleration (m/s²)
- s: Displacement (m)
- t: Time (s)
How to Solve
- Choose the right equation: Select based on which variables you know and need
- Enter 3 known values: Leave the unknown value blank
- Calculate: Get the missing value with detailed steps
Sign Conventions
- Positive: Forward/upward direction
- Negative: Backward/downward direction
- Gravity: Usually -9.8 m/s² (downward)
Applications
- Falling objects and projectile motion
- Vehicle acceleration and braking
- Sports and athletics analysis
- Engineering motion design
Try Sample Calculations
Click "Load Sample" to see typical problems for each equation type.
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