Re: help me become a better programmer

Richard Heathfield wrote:
John W. Krahn said:

Richard Heathfield wrote:

<snip>
Rubber composition makes a lot of difference to grip, and grip is one of
only two factors that limit speed on a tight corner, the other being
weight.
And also aerodynamics. Air pressure above and below the vehicle affect
the amount of downward pressure that is exerted on the tyres.

Heh - well, yes, okay, I was using "weight" a little broadly there. Let's separate out the various forces.

The centripetal force acting on an object travelling around a corner is F = mv^2/r (where m = mass, v = tangential velocity, and r = the radius of curvature).

Given k, the kinetic friction coefficient between the tyres and the road, and g, the acceleration due to gravity,

Is that a soapbox car or are you dropping it out of an aeroplane? :-)

the maximum frictional force (grip) that the tyres can sustain is simply k * m * g.

The air resistance R on a shape having a drag coefficient of d and a cross-sectional area of S travelling in air of density D at v m/s is R = d * D * S * v^2 / 2.

What have I forgotten?


John
--
Perl isn't a toolbox, but a small machine shop where you
can special-order certain sorts of tools at low cost and
in short order. -- Larry Wall
.

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