ParticleSystem:getRadialAcceleration
 Available since LÖVE 0.9.0  
 This function is not supported in earlier versions. 
Gets the radial acceleration (away from the emitter).
Function
Synopsis
min, max = ParticleSystem:getRadialAcceleration( )
Arguments
Nothing.
Returns
See Also
    © 2006–2020 LÖVE Development Team
Licensed under the GNU Free Documentation License, Version 1.3.
    https://love2d.org/wiki/ParticleSystem:getRadialAcceleration