What is inertia.?

Objects that are moving tend to continue moving, while objects that aren't moving tend to remain at rest unless they're acted upon by some other force. This is called the law of inertia and it applies to driving. For example, when you're waiting for a green light on flat pavement at an intersection, your vehicle won't move unless you engage the engine or are otherwise pushed. If you are going right into a curve, Inertia will pull your vehicle to the center of the road, or possibly into an oncoming traffic lane. Safety belts work against inertia to keep you from being thrown forward

The Law of Inertia
An object in motion, remains in motion, in a straight line, at a constant speed, until acted upon by an unbalanced force, is what keeps a car going straight down the highway, with minimal steering effort.

Effect of Inertia on Driving
While driving, inertia keeps your vehicle moving unless the vehicle is acted upon by something, such as your brakes, the road surface, a fixed object (such as a tree), or another vehicle. Inertia also causes your body and loose objects in the car to keep moving forward if your vehicle comes to a sudden stop.

Inertia in Crashes
You may be injured because of the inertia and momentum of loose objects in your car which can fly through the air during a sudden stop. When you're stopped and hit from behind, your head tends to stay in place due to inertia while the rest of your body is pushed forward by the seat. This causes whiplash. Properly adjusting your headrest can reduce injury due to whiplash.

Inertia and Whiplash
If your vehicle is hit from behind while stopped, your head tends to stay in place due to inertia, while the rest of your body is pushed forward by the seat. This causes whiplash. Properly adjusting your headrestreduces injuries due to whiplash.
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One major advantage of push/pull steering from the low-hand position is________.

Question: One major advantage of push/pull steering from the low-hand position is________.
A. the elimination of reduced vehicle load transfer
B. it results in less leg fatigue
C. it combines control of steering and acceleration
D. enhanced vehicle control because the arms stay close to the body and maintain a more stable vertical body position


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enhanced vehicle control because the arms stay close to the body and maintain a more stable vertical body position


Question: What is the proper head and body position when going in reverse?
A. Your left hand at the top of the steering wheel, your head and torso facing forward, looking into the rearview and side mirrors
B. Your left hand at the top of the steering wheel and your head and torso turned to the right so you can see out the back window
C. Both hands on the steering wheel, your head and torso facing forward, and looking into the rearview mirror
D. All of the above

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Your left hand at the top of the steering wheel and your head and torso turned to the right so you can see out the back window


Question: What is the preferred steering method to help reduce the possibility of losing control?
A. One Hand Steering
B. Hand-over-Hand Steering
C. Push-pull steering (Hand-to-Hand)
D. No hand steering

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Push-pull steering (Hand-to-Hand)


Question: The best hand position on the steering wheel for maximum steering control is:
A.) 8 and 4 o'clock
B.) 9 and 3 o'clock
C.) 12 and 6 o'clock
D.) 6 and 10 o'clock

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9 and 3 o'clock


Question: In order to be properly positioned in the driver's seat, you must be _____________________________.
A. bending towards the steering wheel
B. sitting up straight with right hand only on the steering wheel
C. sitting up straight with both hands on the steering wheel
D. sitting up straight by placing a cushion under the seat for better view

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sitting up straight with both hands on the steering wheel


Question: New hand positions are encouraged on the steering wheel such as __________.
A. 11 and 3 o'clock
B. 8 and 4 o'clock
C. 10 and 2 o'clock
D. 6 and 10 o'clock

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8 and 4 o'clock
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Traffic engineers use signals in combination with signs and markings to________.

Question: Traffic engineers use signals in combination with signs and markings to________.
A. improve gas mileage
B. cause traffic jams
C. distract the driver
D. control and manage busy streets


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control and manage busy streets


Question: Traffic engineers and lawmakers have designed our roads, laws and traffic controls to help drivers __________ what other road users are about to do.
A. communicate
B. know exactly
C. control
D. anticipate and predict

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anticipate and predict


Question: Traffic engineers use signals in combination with signs and markings to________.
A. control busy streets
B. cause traffic jams
C. establish flow rates
D. divert traffic off of main roads


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divert traffic off of main roads


Question: Traffic engineers and lawmakers have designed our roads, laws and traffic controls to reduce our chances of ________ each other.
A: racing
B: passing
C: irritating
D: crashing into

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crashing into
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