This Is An Experimental Setup Of Murmur With Postgresql " How Does The Mass Of A Matchbox Car Affect It's Velocity?" Help What Is The Control And Experimental Setup?

" How does the mass of a matchbox car affect it's velocity?" Help what is the control and experimental setup? - this is an experimental setup of murmur with postgresql

I need to know the control and experimental configuration, so that you can take pictures. I do not know what they are in this project, please help!