# Find the Final Velocity of a Body Using Linear Motion Equation in C++

In this tutorial, we will learn how to calculate the final velocity of a body in C++ using linear motion. We take initial velocity, acceleration and time as parameters.

## The formula we are going to use to find the velocity of a body in C++ Using linear motion

Formula used :

**v = u + a*t**

where v: final velocity in m/s,

u: initial velocity in m/s,

a: acceleration in m/s^2.

t: time in seconds

This is the Linear motion equation. It is given by Newton.

Step 1: Define variables, make them the float data type. Here, we use four variables: **v** to define output and **u, a** and **t** to define parameters.

Step 2: Take values from the user.

Step 3: Calculate the answer using the formula and print it.

#include <iostream> using namespace std; int main() { float v,u,a,t ; cout<<"Enter initial velocity \n" ; cin>> u ; cout<<"Enter acceleration \n" ; cin>> a ; cout<<"Enter time \n"; cin>> t ; v = u + a*t ; cout<<v ; ; return 0; }

If we take **u** as 1.2, **a** as 2.2 and **t** as 3.2. The output will be:

Enter initial velocity Enter acceleration Enter time 8.24

Therefore, we calculated the final velocity of a body using Newton’s equation of first law in C++ by this simple code.

Also read: C++ program to find solutions of quadratic equation

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