I attend a middle skool and I sit ALL the way in the back of the bus with my friends. I always ask them wen we go over speed bumps by the skool y do we just about break our necks and they dont know the answer. Can any1 answer this Q?
2007-01-12 14:58:56 · 10 answers · asked by Anonymous in Cars & Transportation ➔ Other - Cars & Transportation
I'll expand a little on farmer + paul's answers. The back of the bus is not as well "suspended" as the front+middle. Meaning that the spring and shock absorbers are designed to absorb shock and vibration as a pair (front and rear suspension).
When a bump is started at the front.. it is absorbed by the front suspension and any left over vibration is dampened by the weight of the body and the rear suspension helps even further.
When a bump is started at the rear, some of the shock is absorbed by the rear suspension, and the left over travels to the front and rear.. the front dampens the shock simply with it's weight and front absorbers, but the rear is hanging in mid air!
The back of the bus is basically a very poorly suspended add-on protected only the back shock+spring set(not sure if all buses have this type of susp, but the concept is still the same).
Also, the back is so light as compared to the front and middle sections that when a shock wave travels through the body of the vehicle, the lightest part swings the most...
Think of it like being at the tip of a whip, the handle being the engine and drivers area(the most weight) and the leather body is the middle of the bus... so don't whine when the whip cracks and you're at the end of it :@
Stay in skool tho, even if it hurts to get there and back
2007-01-12 16:00:00 · answer #1 · answered by Wattanabe 2 · 0⤊ 0⤋
buses are cheap, they hafta be for the low budget they have to pay for them. the entire frame and body is metal. metal conducts vibrations really well, so when you sit RIGHT ON THE WHEEL and you hit a bump, you get the full force. The impact goes right from under the bus, to the metal legs on your seat, and right into your body, sending you in the air depending on how much you weigh... If you want to see what i mean, get a long piece narrow piece of metal, like the legs of most school seats. Put your hand on the piece of metal... now a few inches up from your hand.. take a solid object and hit it against the metal (not too hard) and feel the vibration your hand feels... now take that same solid object and do the same thing... this time on the seat infront of you on the school bus. (the fabric part). You probably wont feel any vibration at all from the fabric, thats because it doesnt conduction vibrations as well as metal. Just dont hurt anyone or do anything stupid and sue me.. lol.. use a pen as your solid object or something.
2007-01-12 15:18:52 · answer #2 · answered by Corey 4 · 0⤊ 0⤋
You are sitting behind the rear wheel, where the vehicle is most stable. By going over the speed bumps, the suspension tries to keep the tires on the ground and makes the bus bounce.
2007-01-12 15:44:09 · answer #3 · answered by Jerry B 1 · 0⤊ 0⤋
i imagine it has to do with physics.The bus is the attempt arm. the individuals in direction of the again are farthest faraway from the fulcrum, or the bump. This creates a much better mechanical income, which makes it extra common to elevate them out of their seats.
2016-11-23 15:15:31 · answer #4 · answered by dashrath 4 · 0⤊ 0⤋
The bus body is effectively a lever. Ask your science teacher about levers.
2007-01-13 11:16:32 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The springs in the rear are MUCH stiffer than those in the front, plus, the weight of the engine/trans. helps the front ride smoother.
2007-01-12 15:12:24 · answer #6 · answered by Trump 2020 7 · 0⤊ 0⤋
Because you're sitting directly over the wheels where the impact is greatest.
2007-01-12 15:06:38 · answer #7 · answered by Bill P 5 · 1⤊ 0⤋
you are behind the back wheels/suspension so the back is not as supported as the middle which is supported by two tires in the front and the back
but you are behind those tires
2007-01-12 15:07:26 · answer #8 · answered by farmer 2 · 1⤊ 0⤋
those bumps used to be so fun, we'd literally fly out of our seats!
kids nowadays are so darn fat, they probably don't move...lol!
2007-01-12 15:03:45 · answer #9 · answered by I Think 4 Me 3 · 0⤊ 2⤋
I wonder the same thing.
2007-01-12 15:02:23 · answer #10 · answered by You Lames! 6 · 0⤊ 1⤋