November 21, 2012 3:25 am at 3:25 am #606266
Hello dear readers let me get fast to the point of what I’m trying to understand, to be honest what I should of as done is before I ask my Q. I should give away some time explaining why I’m talking about such a silly issue, but anything that very few people know the answ. Is not considerd silly so here is my Q.-why when you ride on a bus and you give a jump in middle when the bus is moving why don’t you end up at the back of the bus its so simple if your in the middle of the bus and you jump how come u stay on the same place of were you started to jump???- (I know I sound silly but the way you will be able to proof that I am is by answ. The right one)November 21, 2012 3:38 am at 3:38 am #1027218
Because you are traveling at the same speed as the bus. That’s why if a vehicle stops suddenly, the passengers are thrown forward – they were also traveling at 50 mph or whatever. But as long as the wind isn’t blowing on you you can’t feel your speed.November 21, 2012 4:38 am at 4:38 am #1027219
Inertia.November 21, 2012 12:16 pm at 12:16 pm #1027220
nudnikit: Granted that while one is connected to the bus (either through sitting down or standing on the floor) one would be traveling at the same speed of the bus, but when you jump in the air, what helps keeps you up to speed with the bus?November 21, 2012 7:03 pm at 7:03 pm #1027221
uneeq: Inertia.November 21, 2012 7:26 pm at 7:26 pm #1027222
WIY, inertia is the resistance to movement. You mean momentum.
Uneeq, The bus does not have to keep pushing you. You accelerated together with the bus, since you were on the floor when it accelerated. The bus itself needs constant energy to keep moving because it has the wind and ground friction slowing it down. If not for those factors, as long as the bus is traveling on a straight line it would be able to keep on going.
There is nothing holding you back from moving so you keep on moving. If, however, the bus turns or slows down and you are not sitting down you will indeed ‘find yourself another seat.’
This can be observed in space. Once an object in space started moving there is nothing to slow it down and it keeps on moving. That’s how the satellites keep moving. They don’t have fuel tanks. They get one push in the beginning and they keep on moving.November 21, 2012 8:08 pm at 8:08 pm #1027223
HaLevi: Resistance to change in state, not resistance to movement.November 21, 2012 8:52 pm at 8:52 pm #1027224
Indeed, inertia and momentum are the same mechanism. But, they are two word, used to describe two different situations.November 22, 2012 1:43 pm at 1:43 pm #1027225
So if you were on the back of a boat, and jumped, would you land on the boat or in the water?November 22, 2012 6:34 pm at 6:34 pm #1027226
If you are in the open and the boat is going fast, you will land in the water.November 22, 2012 10:26 pm at 10:26 pm #1027227
HaLeiVi: It depends what kind of engine the boat is using.
(I liked your sentence ..”you will land in the water.” How about “water in the land”?November 23, 2012 1:18 am at 1:18 am #1027228
You think it makes a difference if the boat uses propellers, turbines, paddles, oars, horses or jet?November 23, 2012 4:30 am at 4:30 am #1027229
Inertia, described by Newton’s first law:
“An object in motion will remain in motion unless acted upon by a net force.”
What were you correcting me on?November 23, 2012 6:30 pm at 6:30 pm #1027230
Well then I guess you’re right.
It’s just that inertia is what describes the resistance to change of mobile state, while momentum is the study of the energy of movement. When you are trying to explain to someone why you don’t fly to the back, the answer should be that you are moving along before explaining that you didn’t stop moving.August 12, 2014 3:39 am at 3:39 am #1027231
This thread is in the humor section but isn’t humorous. The only funny line is ZeesKite’s. See why I miss her?
SiDi™August 12, 2014 4:17 am at 4:17 am #1027232
See the koach of one letz!!August 12, 2014 9:18 pm at 9:18 pm #1027234
Not true. Acceleration in a bus counters all other factors, causing you to be severely injured and lose all memory of what happened.
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