TBR test 1 physical sciences q 51

[2010premed]

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The Bernoulli effect, an aerodynamic principle that explains how aircraft fly, is also applicable to auto racing. The only difference in design between the wing of an airplane and the rear wing of a racing car is that the latter is upside down.Racing cars are built with an inverted wing on the rear of the chassis in order to:

Answer: increase the traction of the rear tires by decreasing lift.

I get the decreasing lift part, but not the increase the traction part

 

[fizzgig]

the more traction you have the harder you can push without the tires slipping.

 

[Pons Asinorum]

"Traction" is static frictional force. By increasing downforce due to the inverted airfoil, you increase the normal force acting on the tires' contact patches.

The Bernoulli effect, an aerodynamic principle that explains how aircraft fly, is also applicable to auto racing. The only difference in design between the wing of an airplane and the rear wing of a racing car is that the latter is upside down.Racing cars are built with an inverted wing on the rear of the chassis in order to:

Answer: increase the traction of the rear tires by decreasing lift.

I get the decreasing lift part, but not the increase the traction part