Calculator for how speed dey change

Formula

Average acceleration a = (v₁ − v₀) ÷ t. When acceleration stay constant, signed displacement na s = ((v₀ + v₁) ÷ 2) × t. If velocity change sign, total distance na the distance before plus the distance after the time wey velocity reach zero; e no be absolute displacement. Negative acceleration mean signed velocity dey reduce; speed fit increase or reduce depending on direction. Enter velocity in m/s and time in seconds to get acceleration in m/s² and displacement or distance in metres.

Example wey show the calculation

From rest (0 m/s) reach 30 m/s inside 5 seconds: a = (30 − 0) ÷ 5 = 6.00 m/s². Velocity change na 30 m/s, and distance wey e cover na ((0 + 30) ÷ 2) × 5 = 15 × 5 = 75 m. To understand the size, 6 m/s² na strong car take-off — roughly 0 to 100 km/h inside about 4.6 seconds if the rate stay the same (100 km/h na 27.78 m/s, and 27.78 ÷ 6 = 4.63 s).

Where e fit work and limits

This page calculate average acceleration over the interval, with assumption say e stay constant. Real acceleration usually dey change (engine pull dey reduce as speed increase), so this result na average, no be peak. Na one-dimensional model, and e support reversal along that axis. E no cover curved paths, circular motion or vector components across many axes. Time must pass zero — instant change (t = 0) go imply infinite acceleration, wey this page reject instead of displaying am.

Version of di formula: c12135384eb7 · Example don get check: 2026-10-31

Questions wey people dey ask often

Wetin be the difference between velocity and acceleration?

Velocity show how fast something dey move; acceleration show how fast that velocity dey change. Car wey maintain 30 m/s get high velocity but zero acceleration. The same car wey dey increase from 0 to 30 m/s get positive acceleration as the speed dey rise.

Wetin negative acceleration mean?

Negative acceleration point along the negative axis. E reduce speed when velocity dey positive, but increase speed when velocity dey negative. If velocity cross zero, the object slow down, turn back, then speed up.

Why the unit na m/s²?

Na because acceleration na change for velocity for each unit of time: (m/s) ÷ s = m/s². You fit read am as metres per second for each second — every second, velocity dey increase by that number of m/s.

How force take relate to dis?

Newton second law say force = mass × acceleration. Car wey get mass of 1,000 kg and acceleration of 6 m/s² need net force of 6,000 N. Dis page no collect mass, so e no fit calculate force.

I fit use km/h instead of m/s?

Only after you convert am: divide km/h by 3.6 to get m/s, and change the time to seconds. If you mix km/h with seconds, the result no go be m/s². The conversions for velocity calculator fit help.

9.8 m/s² get special meaning?

Yes — na g, gravity near Earth surface. Object wey dey fall freely, if we leave air resistance out, dey accelerate downwards at about 9.81 m/s². Enter v₀ = 0, v₁ = 9.81, t = 1 to check am.

Other tools wey relate to dis

• Calculator for average speed — work out speed from distance and time
• Tool to convert speed units — km/h, m/s, mph and knots
• Calculator for pace — minutes for each kilometre, from distance and time