Velocity Calculator
Solve for velocity, distance, acceleration, or time using SUVAT equations
Solve For
Initial Velocity (u)
m/s
Acceleration (a)
m/s²
Time (t)
s
SUVAT Equations
v = u + at
s = ut + ½at²
v² = u² + 2as
s = ½(u + v)t
Results
Final Velocity
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Initial Velocity
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Acceleration
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Time
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Distance Covered
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SUVAT Equations Explained
SUVAT equations describe motion under constant (uniform) acceleration. The five variables — s (displacement), u (initial velocity), v (final velocity), a (acceleration), t (time) — are related by four equations. Given any two values, all others can be found.
Common examples: free fall uses a = 9.81 m/s² downward; a car braking from 60 km/h to rest; a ball thrown upward. Note that direction matters — acceleration can be negative (deceleration) and velocity can be negative if moving opposite to the chosen positive direction.
lightbulb Example
Ball dropped from rest, falls for 3 seconds:
1u = 0, a = 9.81 m/s², t = 3s
2v = u + at = 0 + 9.81 × 3 = 29.43 m/s
3s = ½at² = ½ × 9.81 × 9 = 44.1 m
✓ Falls 44.1 m, reaching 105.95 km/h