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Velocity After Time T Calculator

🚗 Motion (kinematics). Use the Velocity after time t formula to find final velocity v, start velocity u, acceleration, time: pick the value you want, type the others, and the answer updates as you go.

v=u+atv = u + at
Final velocity v14 m/s

Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.

What each letter means

QuantityUnit
Final velocity vm/s
Start velocity um/s
Accelerationm/s²
Times

Worked example

Find the final velocity v when Start velocity u = 4 m/s, Acceleration = 2 m/s², Time = 5 s.

Using v = u + at: Final velocity v = 14 m/s.

Frequently asked questions

What is the formula for Velocity after time t?

v = u + at.

What do the letters stand for, and what units are used?

Final velocity v in m/s, Start velocity u in m/s, Acceleration in m/s², Time in s.

How do you calculate final velocity v?

Put the values into v = u + at. For example, with Start velocity u = 4 m/s, Acceleration = 2 m/s², Time = 5 s, final velocity v = 14 m/s.

Can I solve for a different value?

Yes. In the calculator above, pick the circle next to any value (final velocity v, start velocity u, acceleration, time) and fill in the others: it rearranges the formula for you.

All physics formulas in the Physics Formulas See it in the Motion Graphs simulation