Regarding physics computations. provide a code with the help of below which solves the required thing:

$/**$

$*$ Calculate the acceleration.

$*$

$*$ All vectors are assumed to be of length $3$

$*$

$*$ Parameters

$*----------$

$*$ accelerations $-$ Vector where accelerations are to be written

$*$ positions $-$ Vector of positions

$*$ masses $-$ Vector of masses

$*$ kappa $-$ Spring constant

$*$

$*/$

void calculate$\_$acceleration$($double $*$accelerations$,$ double $*$positions$,$ double $*$masses$,$ double kappa$)$

$\{$

const unsigned int N $=3$; $//$ There are three particles

$//$ Write to the accelerations vector

$\}$

$/**$

$*$ Calculate the potential energy

$*$

$*$ All vectors are assumed to be of length $3$

$*$

$*$ Parameters

$*----------$

$*$ positions $-$ Vector of positions

$*$ kappa $-$ Spring constant

$*$ Returns

$*-------$

$*$ Potential energy

$*$

$*/$

double calculate$\_$potential$\_$energy$($double $*$positions$,$ double kappa$)$

$\{$

const unsigned int N $=3$; $//$ There are three particles

$//$ Return potential energy

$\}$

$/**$

$*$ Calculate the kinetic energy

$*$

$*$ All vectors are assumed to be of length $3$

$*$

$*$ Parameters

$*----------$

$*$ velocities $-$ Vector of velocities

$*$ masses $-$ Vector of masses

$*$

$*$ Returns

$*-------$

$*$ Kinetic energy

$*$

$*/$

double calculate$\_$kinetic$\_$energy$($double $*$velocities$,$ double $*$masses$)$

$\{$

const unsigned int N $=3$; $//$ There are three particles

$//$ Return kinetic energy

$\}$

$/**$

$*$ Perform one velocity Verlet step

$*$

$*$ All vectors are assumed to be of length $3$

$*$

$*$ Parameters

$*----------$

$*$ accelerations $-$ Vector of accelerations

$*$ positions $-$ Vector of positions

$*$ velocities $-$ Vector of velocities

$*$ masses $-$ Vector of masses

$*$ kappa $-$ Spring constant

$*$ timestep $-$ Time step

$*$

$*/$

void velocity$\_$verlet$\_$one$\_$step$($double $*$accelerations$,$ double $*$positions$,$ double $*$velocities$,$

double $*$masses$,$ double kappa, double timestep$)$

$\{$

const unsigned int N $=3$; $//$ There are three particles

$//$ Write to accelerations, positions and velocities vectors

$\}$

Implement functions for calculating the kinetic energy, potential energy and

acceleration of the atoms. Finally, implement one step of the velocity Verlet algorithm

and check the code.