Not exactly - a 30 mph crash alone cannot determine the severity of the crash - the damage to a human body in a crash is largely the factor of time it takes from the 30 mph velocity to zero - I figured this out a long time ago for a physics exercise and don't remember exactly the numbers but a rough estimate if my memory serves me 20 years later was - a thirty mile an hour collision to zero in one second created somewheres on the magnitude of 25 + G's - and I remembered ballpark numbers back then because I also learned that somewhere just over 9 G's all the major arteries get ripped from the heart and you die instantly - I remember this because my then favorite uncle was killed in a 60 mph crash when a drunk went through a stop light - and the part that a 12 year old kid couldn't understand was that he didnt have an external bruise on his body - so this story has been recanted numerous times to nieces, nephews and even now my own son as he started driving. - and just for a side bit of information - for every fractional part of second longer you gain in your deceleration your survival rate goes up logarithmically - that is why cars today that appear to have crumpled horribly in a crash were actually designed to do just that - all while the car is crumpling and bending, it is absorbing the energy of the crash and buying your body precious seconds to slow down.
no
Pretty close.
Gravity
true
It depends upon a number of factors, among them being the height of the building.
well if you were dropped off a 4story building you would probly die but a car crash is kinda different so i guess you would die in a car crash if you were a little kid but if you arent then i don't think you will
Yes, its true. I had driver's ed, and my teacher explained to us the mechanics.
Use tracert to see where your packets are being dropped.
Sometimes.
Usually from being dropped, or being set down too hard.
A coin. It is heavier, and thus less affected by air resistance.
because of greed