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Final Velocity Calculator

Enter any three inputs and click on Calculate button


\( v = u + a t \)

u : m/s
a : m/s2
t : s
v : m/s





How to use this Final Velocity Calculator 🤔

  1. There are input fields for Initial Velocity \((u)\), Acceleration \((a)\), Time \((t)\), and Final Velocity \((v)\). Enter any three inputs and click on Calculate button.
  2. The calculator uses the \( v = u + a t \) formula, substitues given values, and calcuates the missing value.
  3. The missing value is calcuated and displayed in the input field. Also, the caculation is displayed under the input section.

What is Final Velocity?

Final velocity is the speed of an object at the end of its motion after it has been speeding up or slowing down. When an object accelerates, its velocity changes over time. The final velocity tells us how fast the object is moving at the last moment we are looking at.

Calculating Final Velocity

The final velocity of an object is calculated using the formula:

\( v = u + a \cdot t \).

In this formula, the parameters are defined as follows:


Input and Output Combinations of the Final Velocity Calculator

Here are the input combinations available for the calculator, along with the formulas it uses to calculate the corresponding outputs.

Calculator InputsSet #1
  • u Initial Velocity
  • a Acceleration
  • t Time

For these given inputs,

Outputs, Formulas

We calculate the following outputs:

  • Final Velocity\(v = \)\( u + a \cdot t \)
2 Examples
Calculator InputsSet #2
  • v Final Velocity
  • a Acceleration
  • t Time

For these given inputs,

Outputs, Formulas

We calculate the following outputs:

  • Initial Velocity\(u = \)\( v - a \cdot t \)
1 Example
Calculator InputsSet #3
  • v Final Velocity
  • u Initial Velocity
  • t Time

For these given inputs,

Outputs, Formulas

We calculate the following outputs:

  • Acceleration\(a = \)\( \frac{ v - u }{ t } \)
1 Example
Calculator InputsSet #4
  • v Final Velocity
  • a Acceleration
  • u Initial Velocity

For these given inputs,

Outputs, Formulas

We calculate the following outputs:

  • Time\(t = \)\( \frac{ v - u }{ a } \)
1 Example


Examples

1

What is the final velcity of an object travelling with an initial velocity of 5 m/s, an acceleration of 2 m/s2, after travelleling for 10 s.

Answer

Given:

  • initial velocity of object, u = 5 m/s
  • acceleration of object, a = 2 m/s2
  • time of travelling by the object, t = 10 s

Calculating final velocity (v)...

\( v = \) \( u + a \cdot t \)

\( v = \) \(5+2\times10\)

\( v = \) 25 m/s

2

What is the final velcity of an object travelling with an initial velocity of 0 m/s, an acceleration of 9.8 m/s2, after travelleling for 1 s.

Answer

Given:

  • initial velocity of object, u = 0 m/s
  • acceleration of object, a = 9.8 m/s2
  • time of travelling by the object, t = 1 s

Calculating final velocity (v)...

\( v = \) \( u + a \cdot t \)

\( v = \) \(0+9.8\times1\)

\( v = \) 9.8 m/s

3

What is the initial velcity of an object travelling with an acceleration of 2 m/s2 and reaching a final velocity of 100 m/s after travelleling for 10 s.

Answer

Given:

  • final velocity of the object, v = 100 m/s
  • acceleration of object, a = 2 m/s2
  • time of travelling by the object, t = 10 s

Calculating initial velocity (u)...

\( u = \) \( v - a \cdot t \)

\( u = \) \(100-2\times10\)

\( u = \) 80 m/s

4

What is the acceleration of an object travelling with an initial velocity of 50 m/s and reaching a final velocity of 100 m/s after travelleling for 10 s.

Answer

Given:

  • final velocity of the object, v = 100 m/s
  • initial velocity of object, u = 50 m/s
  • time of travelling by the object, t = 10 s

Calculating acceleration (a)...

\( a = \) \( \frac{ v - u }{ t } \)

\( a = \) \( \frac{100-50}{10} \)

\( a = \) 5 m/s2

5

What is the time taken by an object travelling with an initial velocity of 50 m/s and reaching a final velocity of 100 m/s, accelerating at 10 m/s2.

Answer

Given:

  • final velocity of the object, v = 100 m/s
  • acceleration of object, a = 10 m/s2
  • initial velocity of object, u = 50 m/s

Calculating time (t)...

\( t = \) \( \frac{ v - u }{ a } \)

\( t = \) \( \frac{100-50}{10} \)

\( t = \) 5 s