Nissan833 5th Gear April 20, 2015 Share April 20, 2015 Scenario A: A car travelling at 100km/h constantly on an empty road with a fly flying in the car. Is the fly keeping up with the car's speed? The fly would be travelling at the car's speed (100km/h) + whatever its flight speed is (e.g 3km/h) No, but why? If yes, really???!! ===== I actually researched about the answers before but this question always lingered on my mind so I thought to share. Maybe my mind works in a different way, always wondering about weird stuffs. I am also interested in seeing some of the explanations here. Thanks in advance ↡ Advertisement Link to post Share on other sites More sharing options...
Ender Hypersonic April 20, 2015 Share April 20, 2015 TB4 will tell you the fly and the car are in the same inertia frame. 5 Link to post Share on other sites More sharing options...
Little_prince Supersonic April 20, 2015 Share April 20, 2015 that's not IQ question. that's a physic question? relative velocity. Scenario A: A car travelling at 100km/h constantly on an empty road with a fly flying in the car. Is the fly keeping up with the car's speed? The fly would be travelling at the car's speed (100km/h) + whatever its flight speed is (e.g 3km/h) No, but why? If yes, really???!! ===== I actually researched about the answers before but this question always lingered on my mind so I thought to share. Maybe my mind works in a different way, always wondering about weird stuffs. I am also interested in seeing some of the explanations here. Thanks in advance Link to post Share on other sites More sharing options...
Joseph22 Turbocharged April 20, 2015 Share April 20, 2015 (edited) Scenario A: A car travelling at 100km/h constantly on an empty road with a fly flying in the car. Is the fly keeping up with the car's speed? The fly would be travelling at the car's speed (100km/h) + whatever its flight speed is (e.g 3km/h) No, but why? If yes, really???!! ===== I actually researched about the answers before but this question always lingered on my mind so I thought to share. Maybe my mind works in a different way, always wondering about weird stuffs. I am also interested in seeing some of the explanations here. Thanks in advance Earth is spinning at a very fast speed. U jump towards the direction earth is spinning.. And u land 3 meter from the same spot. So u jump 3mtrs or a few miles??? U can answer this question u can answer ur own question. Edited April 20, 2015 by Joseph22 1 Link to post Share on other sites More sharing options...
Vhtfhwlego Supercharged April 20, 2015 Share April 20, 2015 I think it's due to the atmospheric environment. Bring things into larger content. Earth is travelling at 108,000km/hr and why we don't feel it? Besides Earth travelling at 108k km/hr, our solar system is too travelling (google the solar system's travelling speed). God is a speed freak and why we have speeding laws is also a question to me. 2 Link to post Share on other sites More sharing options...
Enye Hypersonic April 20, 2015 Share April 20, 2015 this question primary what level? here the limit is psle only 2 Link to post Share on other sites More sharing options...
Pocus Turbocharged April 20, 2015 Share April 20, 2015 (edited) It depends on the application of your question. If it's standard physics the fly is flying 3km in the car's cabin as the cabin is a self contain environment that shield off the movement from outside. It's not keeping up with the car. But if you are applying the principles of relativity with pov outside the car, the fly is indeed keeping up with the car. It goes beyond that depending on your pov. Eg. the road is also moving due to earth rotating and the earth is moving around the sun and the solar system is moving with the galaxy. For all you know at the pov outside the universe, we are all sitting down and travelling at light speed! Edited April 20, 2015 by Pocus Link to post Share on other sites More sharing options...
Myxilplix Turbocharged April 20, 2015 Share April 20, 2015 Why the driver never open the window so that the fly can get sucked out by the pressure differential? 5 Link to post Share on other sites More sharing options...
bellboy 4th Gear April 20, 2015 Share April 20, 2015 Assuming that the fly wants to stay within the same spot in the car's cabin when the car is going at 100kmh. There are 2 scenarios. 1) If its a normal car with an enclosed cabin, then the car is transporting the air inside at 100kmh. The fly is within that cabin air, and will simply need to hover within. The relative velocity between the cabin air and the car is zero. 2) The fly will need to fly at 100kmh if the car is a convertible with its top down. This is because the relative velocity between the cabin air and the car is 100kmh. Link to post Share on other sites More sharing options...
Vhtfhwlego Supercharged April 20, 2015 Share April 20, 2015 Fun Facts: Humans cant feel speed, humans can only feel acceleration or deceleration. If humans can feel speed, explain why you can't feel anything while sitting still in a airplane. 2 Link to post Share on other sites More sharing options...
Enye Hypersonic April 20, 2015 Share April 20, 2015 Why the driver never open the window so that the fly can get sucked out by the pressure differential? seriously does this work? sometimes got mosquitoes fly in...quite difficult to beat while driving Link to post Share on other sites More sharing options...
Rayleigh 6th Gear April 20, 2015 Share April 20, 2015 Scenario A: A car travelling at 100km/h constantly on an empty road with a fly flying in the car. Is the fly keeping up with the car's speed? The fly would be travelling at the car's speed (100km/h) + whatever its flight speed is (e.g 3km/h) No, but why? If yes, really???!! ===== I actually researched about the answers before but this question always lingered on my mind so I thought to share. Maybe my mind works in a different way, always wondering about weird stuffs. I am also interested in seeing some of the explanations here. Thanks in advance this is newton law of motion. Imagine if you in the train in motion, when you jump, you still land on the same spot. Link to post Share on other sites More sharing options...
Ake109 6th Gear April 20, 2015 Share April 20, 2015 In aeroplane talk, there is ground speed and there is true air speed. So the fly ground speed is 103kph but true air speed is 3kph because the air in the car is moving same direction as his flight vector. Just like in an airplane, you run from economy to biz class, you are still running at 5kph, not (5 + 844)kph. Link to post Share on other sites More sharing options...
Nzy Twincharged April 20, 2015 Share April 20, 2015 I had a similar question when I was in sec school. But then it was a balloon filled with helium in the car instead.The balloon is attached to a string and the string is attached to the car so the balloon is in the middle of the car. Will the balloon move inside the car when the driver accelerates? Link to post Share on other sites More sharing options...
Ake109 6th Gear April 20, 2015 Share April 20, 2015 If humans can feel speed, explain why you can't feel anything while sitting still in a airplane. Jamesc will tell you if the stewardess very chio, he definitely can feel something lor. 2 Link to post Share on other sites More sharing options...
Ender Hypersonic April 20, 2015 Share April 20, 2015 (edited) I had a similar question when I was in sec school. But then it was a balloon filled with helium in the car instead.The balloon is attached to a string and the string is attached to the car so the balloon is in the middle of the car. Will the balloon move inside the car when the driver accelerates? This one youtube has the answer. But is not the same as the fly. Edited April 20, 2015 by Ender 1 Link to post Share on other sites More sharing options...
Unfair 3rd Gear April 20, 2015 Share April 20, 2015 (edited) Scenario A: A car travelling at 100km/h constantly on an empty road with a fly flying in the car. Is the fly keeping up with the car's speed? The fly would be travelling at the car's speed (100km/h) + whatever its flight speed is (e.g 3km/h) No, but why? If yes, really???!! ===== I actually researched about the answers before but this question always lingered on my mind so I thought to share. Maybe my mind works in a different way, always wondering about weird stuffs. I am also interested in seeing some of the explanations here. Thanks in advance Isnt the fly travelling at the cars speed 100km/h ? If you are asking how fast its flying, it should be whatever is necessary to overcome whatever drag there is. Good luck if the windows are down lol Edited April 20, 2015 by Unfair Link to post Share on other sites More sharing options...
Vhtfhwlego Supercharged April 20, 2015 Share April 20, 2015 Jamesc will tell you if the stewardess very chio, he definitely can feel something lor. Blood *rushing somewhere to stiff up matters. *Rush = Speed = can feel. ↡ Advertisement Link to post Share on other sites More sharing options...
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