WebA train is traveling at 30.0 m/s relative to the ground in still air. The frequency of the note emitted by the train whistle is 262 Hz . The speed of sound in air should be taken as 344 … WebJul 20, 2024 · A train travelling at 20km/hr is approaching a platform .A bird is sitting on a pole on the pole on the platform.When the train is at a distance of 2km from pole,brakes …

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WebSolution. as the fast moving train creates a region of low pressure around it (venturi effect). This low pressure can suck in object close to it which are in a region of relatively high pressure. So, this pressure difference is quite dangerous and can cause fatalities. In case you need more scientifical answer, go through below description. WebMay 12, 2024 · If the train is speeding up as it approaches the station, then it will have positive acceleration. If the train is traveling at a constant speed and not changing its … hawk arrow

One train is approaching an observer at rest and another is …

WebMay 7, 2024 · When the train is approaching . f = 491. 491 = f(s)[ v / (v - v(s))] When the train is receding, f = 472. 472 = f(s)[ v / (v + v(s))] next, we divide the frequency when the train is approaching by the frequency when the train is receding. Thus, 491 / 472 = [v + v(s)] / [v - v(s)] 1.04 = [v + v(s)] / [v - v(s)], where . v = 343 m/s. v(s) = speed ... WebA train approaches a station at a constant speed of \(\text{20}\) \(\text{m·s$^{-1}$}\) with its whistle blowing at a frequency ... Suppose a train is approaching you as you stand on the platform at the station. As the train ... WebMar 24, 2024 · Hint: We can use the doppler effect to find the frequency of the sound of whistles heard for the approaching train and sound of the whistle of the train which is leaving. The number of beats can be found by finding the difference between both these frequencies. Complete step by step answer: It is given that the velocity of a train … hawk argentina