Maths/physics whizzes please

[bogan]

Same answer I got...MUST be right then!

Sounds right to me, I mean, a bit of plastic cable aint going to cut fuck all if it is just lightly pushed against it now is it!

What you really want to do, is jam a knife handle first into some grass, then weed wacker it to see how far the plastic flys when cut. 5150 is your neighbour still watching? Might want to warn him about flying bits of plastic this time around, hopefully the knife will stay where it is though.

This distance will give the inertia of the thingumy, and a brightly colored bit of plastic is easier to find than a pebble. From there you can scale the pebble distance by the inverse of the weight. So for a 30g pebble and 1g bit of plastic that goes 90m, would give you a pebble safe distance of 3m.

[bogan]

Or better idea, hire more people to paint the pebbles high vis yellow, and put little parachutes on them to ensure they stay below mach 4.

[Ratti]

Bogan wins this round.

Have been crying with laughter right through this thread. had run-in with my neighbour today...I might just get the weedeater out and practice Pebble flinging. He'd have insurance right?

[Oakie]

Ok. Further following a prctical test in my driveway using a Ryobi 2 smoke weed eater and a 10mm round(ish) stone I can confirm that it hit the neighbours shed window from aprox 25 metres away. that was at full blast 10.000 RPM with 3km head wind. Result. Neighbour is giving me evils.

Practical maths. Love it! I shall add the findings of your experiment to my report to the HSE Committee on Tuesday and even give you credit! You may be awarded a chocolate fish!

Weedeater should have guards on it to prevent peeble from being able to be shot out other than the front in which would be angled towards the uncut weeds that would slow or prevent the peeble from going anywhere. Unless you were to leave weedeater on its side running and the peebles were thrown into it. Im thinking refer the user manual for operating instructions.

Yeah it does have guards. The person who got hurt approached our guys from behind and walked in front of them. Blamed them of course.

[Spuds1234]

Yeah it does have guards. The person who got hurt approached our guys from behind and walked in front of them. Blamed them of course.

I thought your employees were supposed to be less special than the customers....

[Marmoot]

I wager that there is a tiny reduction drive inside the weed eater. And that the head isn't spinning at 10,000 rpm..

I find it highly unlikely that the tip speeds could exceed mach 4..

If 560kmh is more than mach 4, then my bike actually went mach 2 or twice the speed of sound at the pukekohe back straight???

[Oakie]

I thought your employees were supposed to be less special than the customers....

Alas, so did I. Sometimes the line is really blurry!

[Oakie]

If 560kmh is more than mach 4, then my bike actually went mach 2 or twice the speed of sound at the pukekohe back straight???

Off the top of my head I'd say 560kph is about mach .4 that's mach point 4. Like a bit less than half the speed of sound.

[Marmoot]

Off the top of my head I'd say 560kph is about mach .4 that's mach point 4. Like a bit less than half the speed of sound.

That guy i quoted said mach 4, dude.

[Oakie]

That guy i quoted said mach 4, dude.

Yeah I know. Just clarifying for the general population.

[5150]

Practical maths. Love it! I shall add the findings of your experiment to my report to the HSE Committee on Tuesday and even give you credit! You may be awarded a chocolate fish!

No need for chocolate fish, but if they have any jobs going in RnD', then put me down.