Recent content by Simon

Would be interested to know on a mechanical level - it is a good question. Obviously if it was say 1200rpm, it wouldnt be doing the engine too good and wouldnt be at its most efficient and economical level. If it was 5000rpm, this would not be economical either - both petrol and maintenance...

This really takes some thinking doesnt it? Each of your messages takes about 20 minutes to read & understand, let alone the time to put together a response! If only I was Physics lecturer and could pass to my students as a tutorial My first year university physics may not be up to this...

Number9 Yes, in your example I certainly agree that the car would rotate one full turn relative to an fixed external point. Unfortunately relative to the car and the road, the car does not rotate at all. I think some of the other people above have also missed the theories of relativity in...

Number9 - where these two points acts was the kind of the important point of analysis. I think I said the centripetal force acts through the centre of the mass of the car - that would vary say in a 911, NSX, and Ford Falcon. Was trying to dispute the fact that the reduced moment of inertia...

Fantastic, at least nsx4fun and sjs can understand what I was trying to explain. Being one of the engineering and analytical types it is sometimes a little difficult to put into words what the mind is thinking. So the whole theory about polar moment of inertia and the benefits of having the...

Apologies sjs. sjs, I think we may have pointed out an important point that contradicts the physicists on this topic. Waiting for a reply??

This physics talk is all very interesting espceially the points about the polar moment of inertia and the distribution of mass within the car. The word 'centroid' was also mentioned. Unfortunately when a car turns a corner, the point about which the car rotates is not the centre of the car...

Have been reading with great interest the notes on the M3 v NSX - two of the cars of the three cars that I am considering. The third car is a 968 CS. How does the Porsche 968 CS compare with a 91-94 NSX?