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Velocity & Acceleration Calculator

Calculate velocity, acceleration, distance, and time for motion problems. Choose the calculation mode and enter the known values.

v = d / t

Calculate velocity from distance and time

Result:
a = (vf - vi) / t

Calculate acceleration from initial velocity, final velocity, and time

m/s
m/s
s
Result:
d = vit + ½at²

Calculate distance from initial velocity, acceleration, and time

m/s
m/s²
s
Result:
t = (vf - vi) / a

Calculate time from initial velocity, final velocity, and acceleration

m/s
m/s
m/s²
Result:

About Velocity & Acceleration

Velocity

Velocity is the rate of change of position with respect to time. It is a vector quantity, meaning it has both magnitude and direction. Average velocity is calculated as: v = Δd / Δt (change in distance over change in time).

Acceleration

Acceleration is the rate of change of velocity with respect to time. It indicates how quickly an object's velocity is changing. Acceleration is calculated as: a = Δv / Δt (change in velocity over change in time).

Equations of Motion

  • v = vi + at - Final velocity
  • d = vit + ½at² - Distance with constant acceleration
  • v² = vi² + 2ad - Final velocity without time
  • d = (vi + vf)t / 2 - Distance from average velocity

Units

  • Velocity: m/s (meters per second), km/h (kilometers per hour), mph (miles per hour)
  • Acceleration: m/s² (meters per second squared)
  • Distance: m (meters), km (kilometers), ft (feet), mi (miles)
  • Time: s (seconds), min (minutes), h (hours)

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