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My first post here so be gentle.

I want to analyse the relationship between a basketball and then a golf ball rolling down a 4% slope for a distance of 20metres.

There is an added complication that the basketball will roll on compacted roadbase and the golf ball will roll on synthetic grass (astro turf,tennis court type surface)

The distance of 20 metres and 4% slope is constant for both tests and also the impact force is to be a moderate force of say that which is applied to a golf ball with a putter.

I am wanting to either prove or disprove the theory that a basketball rolling on roadbase is a true indication of a golf ball rolling on the final applied synthetic, using this to test slopes and putting grades.

Kind regards,

John