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  1. gttjohn

    Does a truck's load affect its braking distance?

    A truck with a load will take longer to stop it just happened to me today
  2. gttjohn

    Does a truck's load affect its braking distance?

    Yes the truck without the load will stop sooner I've tried it on bikes with two people and then one I've driven trucks with or without load and the unladen truck will take less distance to stop fact
  3. gttjohn

    Hi all im new here a few questions

    thankyou very much for the welcome guys ok the vision question makes real sense to me the doplar effect took some reading and understanding but i think i have the hang of it its like the sound waves plus the speed of the siren traveling to you are say the speed of sound + the viechle speed...
  4. gttjohn

    Hi all im new here a few questions

    hi there question 1 why does the pitch of a siron on an emergency car change as it comes and then goes. 2 ive tryied to understand e=mc2 with some difficulty but what i did understand is that the faster an object travels the more energy it needs the more energy it has the more mass it has...
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