Revision notes on stopping distances.

Revision notes for physics 2  on stopping distances.

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STOPPNGDISTANCES.
THE STOPPING DISTANCE IS THE TIME IT TAKES TO THINK, BRAKE
AND THEN STOP.
Thinking distance:
i. How fast you are going ­ no matter what your reaction time
is, the faster you are going, the further you will travel.
ii. `Awareness' ­ if you are tired, under the influence of drugs or
alcohol, old or careless your thinking distance will increase as
you would `think' for longer.
iii. Visibility ­ Rain, fog or oncoming lights could all make any
hazards difficult to spot.
Braking distance:
i. How fast you are going ­ the faster you go, the further it
takes to stop.
ii. Vehicle weight ­ the same vehicle will take longer to stop
heavily loaded than if it were empty.
iii. How good your brakes are ­ Worn or faulty brakes are FAR
less efficient in an emergency. Brakes should be checked
regularly.
iv. How good is the grip? ­ grip can depend on: a) road surface b) tyres c)
weather

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