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Why Teslas Accelerate So Fast - YouTube
Channel: Business Insider
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2.3 seconds that's all it takes for this
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Tesla to reach 60 miles per hour from a
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standstill that's quicker than a bugatti
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chiron
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the fastest car in the world which takes
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two and a half seconds to go from zero
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to 60 Tesla engineers worked for years
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to shave tenths of a second off the
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Model S performances acceleration time
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so what exactly makes it so good at
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accelerating so fast
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first off electric vehicles will always
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be more efficient than your typical
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combustion engine car and the more
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efficient a car is the better it
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performs gas powered cars are filled
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with thousands of parts linking together
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different mechanical components to
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deliver the power from the engine to the
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wheels to do this the engine sends power
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to the transmission which converts that
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power to usable energy through gears
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clutches and different electrical
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components before sending it to the
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driveshaft
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which ultimately rotates the wheels at
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every point in this process there's a
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loss of energy due to the friction of
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the various moving parts electric
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vehicles are much simpler in part
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because they can accelerate from zero to
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their top speed without shifting a
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single gear since electric vehicles
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don't have to shift gears all the torque
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they can produce is available from zero
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rpm or rotations per minute this is
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what's referred to as an instant torque
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but let's take a step back and talk
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about where that power comes from the
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battery evie batteries range from about
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20 kilowatt hours to 100 kilowatt hours
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this number represents how much energy
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the battery can store also known as
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energy density the 100 kilowatt hour
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battery pack found in the Model S
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performance makes 762 horsepower which
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is on par with lamborghini aventador svj
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but it's the power density of that
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battery that determines how much power
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can be delivered to the electric motor
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per second the higher the power density
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the faster the car can accelerate Tesla
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declined to share the exact power
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density of its batteries but a quick
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look at how the Model S performance
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compares to other EVs
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will prove it is one of the most power
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dense batteries in an electric vehicle
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available today but power isn't
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everything a car can only accelerate as
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fast at the time
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and prick the road traction is one of
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the most important factors when it comes
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to racing if your tires can't grip the
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road then your car isn't going anywhere
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Tesla incorporates three features
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commonly found in other performance cars
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to maximize traction between the tires
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and the road which allows the car to
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accelerate more efficiently the first is
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all-wheel drive two electric motors at
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the front and rear of the car deliver
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power to all four wheels at the same
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time which of course increases traction
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then there's torque vectoring Tesla's
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software measures how well each of the
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tires are gripping the road and adjusts
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torque in the front and rear
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independently hundreds of times per
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second to ensure the tires are
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constantly achieving maximum grip and
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propelling the car forward and lastly
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Tesla uses a tire with a thread pattern
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specifically developed to maximise
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contact with the ground so far
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everything in Model S performance with
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the exception of Tesla's battery
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technology can be found in other
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performance cars or v's these features
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together give the Model S a zero to
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sixty of 3.7 seconds which makes its
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acceleration comparable to the Alfa
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Romeo Giulia or the Dodge Challenger
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Hellcat both of which are impressive
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performance cars on their own but the
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not so secret sauce that propels the
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Model S - supercar performance and
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shaves off another 1.3 seconds is
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ludicrous plus mode and launch control
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ludicrous Plus mode preps the battery
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for maximum performance by heating it to
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precisely 122 degrees to improve power
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output by about 46 horsepower
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according to drag times recent tests of
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the latest firmware update the motors
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inverters and transmission and handle
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higher temperatures for a longer period
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of time before the card limits power to
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cool the car's components down allowing
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the car to endure strenuous driving like
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drag racing longer with launch control
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the front suspension squats into a
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cheetah stance to keep force on the
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front tires more consistent to further
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improve traction the excel is also
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preloaded with a small amount of torque
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similar to pulling a slingshot back to
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build tension before launching a
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projectile
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but in this case the projectile is the
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car there isn't just one feature that
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can be attributed to the incredible
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performance of the Model S instead it's
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a system that maximizes power and
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efficiency at every stage everyday
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everything
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