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Thread: how long to stop

  1. #1
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    Default how long to stop

    if you travel at 170mph how far do you think you will travel befor you can get your foot off the gas onto the brake

    in feet please

    50 feet maybe more have a go

  2. #2
    Regular Member Hideous's Avatar
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    Vehicle : Insignia

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    Engine : CDTI158

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    170 mph is travelling at 249 ft/second.
    Say you were quick, and got on the brakes in 0.5 seconds:-

    125 ft travelled.

    edit: How long to stop after that, depends on the car of course.

  3. #3
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    Quote Originally Posted by Hideous View Post
    170 mph is travelling at 249 ft/second.
    Say you were quick, and got on the brakes in 0.5 seconds:-

    125 ft travelled.
    so your have already covered 125 feet and you are still doing 170 mph ,

    dosnt look so good on missing the car infront of you does it

  4. #4
    Regular Member Danwells72's Avatar
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    Vehicle : Vectra

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    At 170mph you are doing 0.04722222 mile per second(170 / 60 = miles per minute then / 60 = mp second), i would say it will take about 2 seconds(being generous for the slower people) to move your foot off the accelerator and engage the brake pedal in this time you will travel 0.0944444 miles. according to this site you will travel 498 feet

  5. #5
    Regular Member Hideous's Avatar
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    Vehicle : Insignia

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    Quote Originally Posted by Danwells72 View Post
    i would say it will take about 2 seconds(being generous the the slower people)
    Lol, that's a very generous reaction time.

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    Regular Member Danwells72's Avatar
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    i didnt know we was going to crash, in that case i would make it 1 second max lol so 249 feet

  7. #7
    Regular Member Hideous's Avatar
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    Vehicle : Insignia

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    Quote Originally Posted by Danwells72 View Post
    according to this site you will travel 498 feet
    near bang on my calc then 0.5s is 1/4 of 2.0seconds.

  8. #8
    Regular Member Thunder's Avatar
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    Vehicle : Vectra C Facelift

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    you all beat me to it lol

    But it is scary to think of it this way

  9. #9
    Regular Member Danwells72's Avatar
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    Quote Originally Posted by Hideous View Post
    near bang on my calc then 0.5s is 1/4 of 2.0seconds.
    better than chris' guess, youd have to stop time to react like that!

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    i said 170 feet useing the fastest Reaction time of your body would be around 0.7 of 1 sec

    and you are still doing 170 and now you need to slow the car

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