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  • (contemplative orchestral music)

  • - [Narrator] Drifting, the most exhilarating

  • and mesmerizing exhibition of style

  • and control while driving a car.

  • Drifting is graceful, simple even, in appearance.

  • (tires squealing) (engine roaring)

  • But inside the car, there is a riot of activity

  • as the driver wrestles with steering angle, braking,

  • and wheel speed to throw the car

  • in an unnatural position, sideways.

  • For those of us that haven't had a chance to push a car

  • to its limit, drifting is hard to comprehend,

  • so we reached out to an expert for help.

  • - Why do people drift?

  • You want to just demonstrate the supreme car control

  • in showing that you can drive better

  • and more spectacularly than the guy next to you.

  • Think of drifting like an art.

  • Drifting is like dancing.

  • People judge you by how nice you did the dance

  • and how good the angles of your drifting skills are.

  • - [Narrator] That's Leona Chin.

  • She's a decorated motorsports veteran of over 10 years

  • with experience in rally, circuit racing, endurance racing,

  • gymkhana, autocross, drag, off-road, and go-kart.

  • She's the driver behind mega-viral prank videos

  • and the Most Inspiring Female Motorsports Athlete

  • as voted by the Motorsports Association of Malaysia.

  • (engine roaring) (tires squealing)

  • To those who know of her motoring exploits,

  • she goes by another name, the Queen of Drift.

  • Leona helped us understand how drifting works

  • from a science perspective.

  • - [Leona] According to Newton's first law,

  • it's the law of inertia that states

  • that when an object is moving,

  • it wants to keep moving the same way,

  • and it resists any changes to that motion

  • unless there is an external force causing a change.

  • Thus, in this case,

  • the car's natural tendency is to go straight.

  • When the car's steering wheel is turned,

  • then there is an external force.

  • - [Narrator] That force is the friction

  • between the tires and the track, also called traction.

  • When you turn the wheels, some of that traction

  • is angled perpendicular to the car's velocity.

  • So instead of moving in a straight line,

  • the car begins to follow a curved path.

  • But this is not drifting.

  • This is what happens during a normal turn.

  • So when does a turn turn into a drift?

  • When you overcome the friction

  • between your tires and the road.

  • And you do that by entering a curve

  • at an unusually sharp angle or an abnormally high speed.

  • Think of a car moving on a surface

  • where the force of friction is very low, like on ice.

  • A driver may turn their tires in order to avoid

  • an obstacle like a stopped car,

  • but the traction between the ice and the tires is so low

  • that it's easy to overcome it.

  • The car is in a slide.

  • The same thing happens when a driver takes a curve

  • too sharp or too fast on an asphalt racetrack.

  • Now, a regular driver probably wouldn't

  • know what to do during a slide

  • and would likely lose control and go off the road.

  • But professionals like Leona Chin can turn that slide

  • into a drift by taking back control of the car.

  • How?

  • By turning the driving wheel

  • in the opposite direction of the bend.

  • Turning the wheel changes the direction

  • of the friction force from the skid.

  • That can change the direction of the skid itself.

  • (tires squealing) (engine roaring)

  • And if you know exactly how fast to hit the curve

  • and exactly how to turn the steering wheel,

  • you'll make drifting look easy,

  • even though it's anything but.

  • - So simply put, you need to balance

  • the amount of traction you lose

  • on the rear wheels and balance the wheel speed

  • and slide constantly through a drift.

(contemplative orchestral music)

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The Physics Of Drifting, Explained

  • 2 1
    joey joey に公開 2021 年 05 月 25 日
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