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  • If you reverse a car out of a truck…
  • flyingmonkeycorps
    Full Member

    Like in Knight Rider – If your car’s in a truck travelling at (say) 50mph, and you reverse out of the truck but stick the car in neutral before it hits the road so you’re just coasting, which way would the car go when it hit the road?

    Would it go in the opposite direction to the truck as that’s the direction it’s moving in relation to the truck or would it go in the same direction as the truck?

    zokes
    Free Member

    Nope. Just nope.

    stumpy01
    Full Member

    Depends how fast you reverse…..and where your speed is measured relative to.

    Assuming it’s measured relative to the truck,

    <50mph you’ll go forwards (edit – same direction as the truck)
    exactly 50mph you’ll be stationary (impossible in reality)
    >50mph you’ll go backwards. (edit – opposite direction to the truck)

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    wwaswas
    Full Member

    Mythbusters:

    Oh not it’s not, they drove onto a truck.

    jambalaya
    Free Member

    Ask Elon Musk

    Or

    Same direction as the truck at a speed less than 50

    milky1980
    Free Member

    Mythbuters did this year’s ago.

    The car assumes the speed of the truck when coming off the ramp. When going in it assumes the speed of the truck too so it looks really cool but is basic physics. Sure there’s a video on YouTube of it somewhere.

    Edit: Martin hutch got it before me!

    martinhutch
    Full Member

    Say the backwards rolling is at 3mph, then it will be moving forwards at 47mph when it hits the road. In fact, as soon as the back wheels hit the road, then the difference is reduced.

    So it would go the same direction as the truck, at very slightly less velocity (and deccelerating).

    [video]https://www.youtube.com/watch?v=dYlstdCWzCY[/video]

    5 mins onwards for leaving the truck.

    Ecky-Thump
    Free Member

    Depends how fast you were reversing. 😛

    trademark
    Free Member

    How fast was the conveyor belt going?

    nickjb
    Free Member

    exactly 50mph you’ll be stationary (impossible in reality)

    Simpler with a ball

    [video]https://youtu.be/BLuI118nhzc[/video]

    trail_rat
    Free Member

    for maximum effect leave it in gear when you hit the tarmac.

    pistons through the bonnet or cogs through the casing …. one or the other.

    Rorschach
    Free Member

    Is the lorry (it’s NOT a ‘truck’) on an aircraft carrier?

    eddiebaby
    Free Member

    I’m not certain. I’m going to check the Italian Job again. I think the main thing is not to try this on alpine hairpins.

    kayla1
    Free Member

    Is the aircraft carrier on a conveyor belt?

    scotroutes
    Full Member

    Aye, but…
    [video]http://www.youtube.com/watch?v=yq4uCWtQE24[/video]

Viewing 16 posts - 1 through 16 (of 16 total)

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