What happens to the fly?
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I've been asking this for the longest time, but I've never manage to get an answer. Pls give your possible scenarios.
If a fly (the flying insect type, ok?
) flies into a bus at a bus-stop, say, it flew into the front of the bus. Then the bus started moving away from the bus-stop, and the fly keeps on flying or buzzing about in the bus.
As you know, the bus moves at a speed faster than the fly, so what will happen to the fly? -
it is jus like us. we jerk a little when it starts but remember a fly has a very much smaller inertia so it would not definitely wun fly to the back of the bus lol
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the fly is flying in it own space ... no matter the bus stop or move it wont affect the fly mah .......
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wah. ur memory damn the good lah.Originally posted by FireIce: -
i ask one mahOriginally posted by s|nNeD:wah. ur memory damn the good lah.
though till now i still dunno the full explanation
but agah agah lah -
if the observer is travelling in the train, and the train is travelling at a constant velocity, the observer's frame of reference could be perceived as motionless - after all, the Earth is in constant motion, but our frame of reference is usually defined as fixed
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Originally posted by FireIce:i ask one mah
though till now i still dunno the full explanation
but agah agah lah
i went to the thread lah... damn cheem explainations. -
remember relative velocity? V fly/human relative velocity of fly in view point of humans. when the fly n us move at same speed we perceive as the fly not moving
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All this thing about velocity does not matter to the bus captain.
He's only interested to know if the fly tapped its EZ link card. -
theory wise Velocity of flies in view point of humans equals to the velocity of flies minus velocity of humans.
so in your case applying this law n equation. the fly n us is on board n the bus is travelling in let say 50km/h. therefore the fly n us is travelling at both 50km/h. applying the velocity equation 50 minus 50 is 0 n therefore us seeing the flies not really moving -
Fly/busorMRT not important... Ive been thinking of this since small...
When a passenger is inside a bus/MRT let say he is stepping on the floor lah... wen veh moves, they will follow... wat happens if they jump? They fly all the way back arh? -
Thank you for sharing, but erm...you're bery cheem. Can you don't say things like "remember velocity" coz not all of us studied physics.Originally posted by leon_lai89:remember relative velocity? V fly/human relative velocity of fly in view point of humans. when the fly n us move at same speed we perceive as the fly not moving
Also, you see your earlier 1st reply, confusing or not? *scratch head*Originally posted by leon_lai89:it is jus like us. we jerk a little when it starts but remember a fly has a very much smaller inertia so it would not definitely wun fly to the back of the bus lol -
Originally posted by charlize:All this thing about velocity does not matter to the bus captain.
He's only interested to know if the fly tapped its EZ link card. -
Eh, I don't really understand the details of the other posts, but what I think is the misconception, is that the fly does fly at same speed as the moving bus. Originally posted by zozo:As you know, the bus moves at a speed faster than the fly, so what will happen to the fly?
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it is not about the bus its us. when we n the fly moves we dun see it move because we travel at same speed. do u feel the earth moving?
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my dotter just asked me a few days back : if the earth is moving, y don't we feel it??
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we dont feel it as we move along with the earth. when two things move along at the same velocity we dont percieve the earth as moving
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Wah relative velocity..Explanation until so cheem meh..
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but y we can feel the bus or car moving??
and when the car or bus move, we can feel the wind....then there should be wind 24/7, cos the earth turning all the time....
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Go study physics and the chapter on relativity..
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we can feel coz of inertia when the bus suddenly slow down we tend to slow down later coz of inertia of we feel the bus slowing but by right at constant velocity we shouldnt feel bus moving except the engines. winds in the other issue due to the change in air pressure. high pressure moves to low pressure so we find winds coz there's a change or difference in pressure. thats not physics now its geog
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OK, I get on the bus, the bus starts moving, but I walk to the back of the bus at a much slower pace, what happens to me?
Nothing.
So, I guess that's sama-sama for the fly!
OK, sorry... my 'logic' is kinda thwarted! When I don't have the hard facts on hand, I exercise the liberty to improvise! 
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oh.. classical newtonian physics then
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interesting leh i think if the fly is flying in the air when the bus is stoping then suddenly the buss chiong forward i think the fkly will hurtle to the back or maybe into some one's mouth?