Ok for the sake of curiosity a golf ball is 0.045kg has a radius of 0.021m so moment of inertia (which is the bit of this I don't know about) = 7.94E-6

If it's spinning at 7000rpm that's 733 rad /s

KE due to spinning is therefore 2.05J

So if the golf ball under went a perfectly inelastic collision where 50% of the rotational energy was converted into translational energy the velocity of the golf ball would be, 6.7m/s or 24km/hour a not insignificant speed.

And before you know it you've revised for your mechanics exams and I keep righting gold ball :/

If it's spinning at 7000rpm that's 733 rad /s

KE due to spinning is therefore 2.05J

So if the golf ball under went a perfectly inelastic collision where 50% of the rotational energy was converted into translational energy the velocity of the golf ball would be, 6.7m/s or 24km/hour a not insignificant speed.

And before you know it you've revised for your mechanics exams and I keep righting gold ball :/