Measure-Velocity.ps1
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function Measure-Velocity { <# .Synopsis Measures velocity .Description Calculates velocity, using several well-known formula. Velocity can be determined with: * Initial Velocity (u), Acceleration (a), and Time (t) (v = u + a * t ) * Initial Velocity (u), Accleration (a), and Initial Distance (s) (v ^ 2 = u ^ 2 + 2as) #> param( # The initial velocity. [Parameter(Mandatory=$true,ParameterSetName='MomentVelocity',Position=0)] [Parameter(Mandatory=$true,ParameterSetName='VelocityAfterAcceleration',Position=0)] [Alias('U')] [Double] $InitialVelocity, # The acceleration (a) [Parameter(Mandatory=$true,ParameterSetName='MomentVelocity',Position=1)] [Parameter(Mandatory=$true,ParameterSetName='VelocityAfterAcceleration',Position=1)] [Alias('A')] [Double] $Acceleration, # The time travelled [Parameter(Mandatory=$true,ParameterSetName='MomentVelocity',Position=2)] [Double] $Time, # The distance travelled [Parameter(Mandatory=$true,ParameterSetName='VelocityAfterAcceleration',Position=3)] [Double] $Distance ) process { if ($PSCmdlet.ParameterSetName -eq 'MomentVelocity') { & { # Multiply time and acceleration $timeAndAcceleration = $Time * $Acceleration # FinalVelocity is InitialVelocity + TimeAndAcceleration $InitialVelocity + $timeAndAcceleration } } elseif ($PSCmdlet.ParameterSetName -eq 'VelocityAfterAcceleration') { & { # Square the initial velocity $initalVelocitySquared = $InitialVelocity * $InitialVelocity # Calculate acceleration and distance $TwoTimeAccelerationAndDistance = 2 * $Acceleration * $Distance # Combined Value $CombinedValue = $initalVelocitySquared + $TwoTimeAccelerationAndDistance # FinalVelocity is InitialVelocity + TimeAndAcceleration [Math]::Sqrt($CombinedValue) } } } } |