Moving trains

Two trains moving towards each other crosses one another in 15 seconds. If both of them move in the same direction one will cross the other in 25 seconds. If both are of the same length, find the ratio of the speed of the faster train to the slower train. 5 ∶ 24 ∶ 35 ∶ 14 ∶ 12 ∶ 1Answer (Detailed Solution Below) Option 4 : 4 ∶ 1 Free IBPS RRB PO Prelims Full Test 1 80 Questions 80 Marks 45 Mins Given:Time taken by two trains to cross each other when they move towards each other = 15 sTime taken by one train to cross the other when they are moving in the same direction = 25 sThe length of both trains is the same.Concept used:If the length of two trains are L1 and L2 and the speed of two trains are S1 and S2 (S1 > S2), then,Time taken by two trains to cross each other when they move towards each other = (L1 + L2)/Relative speedrelative speed when they move towards each other = S1 + S2Time taken by one train to cross the other when they are moving in the same direction = (L1 + L2)/(relative speed)relative speed when they are moving in the same direction = S1 – S2Calculation:Time taken by two trains to cross each other when they move towards each other = (L1 + L1)/( S1 + S2)⇒ 15 = 2L1/(S1 + S2)⇒ 2L1 = 15 × (S1 + S2) ----(1)Time taken by one train to cross the other when they are moving in the same direction = (L1 + L1)/(S1 – S2)⇒ 25 = 2L1/(S1 – S2)⇒ 2L1 = 25 × (S1 – S2) ----(2)Equating (1) and (2), we get,15 × (S1 + S2) = 25 × (S1 – S2) ⇒ 3S1 + 3S2 = 5S1 – 5S2⇒ 8S2 = 2S1⇒ 4S2 = S1From this, we can see that S1 is faster than S2.Then the ratio of the faster train to slower train = S1 ∶ S2⇒ The ratio of the faster train to slower train, S1 ∶ S2 = 4 ∶ 1∴ The ratio of the faster train to the slower train is 4 ∶ 1. Latest RRB Officer Scale - I Updates Last updated on Jan 15, 2025 -> The IBPS RRB PO 2025 Exam Dates have been released on 15th January 2025.-> As per the official notice,

Old aluminum kettle and hot steam Drone Footage Over a Bridge While Train Passes Drone Footage of Bridge as Trains and Cars Pass Medium Shot Of A Man Skating A Concrete Ramp Traveling Shot Following A Man Skating A Concrete Ramp Cinemagraph of steaming coffee on working desk. Steam Coming out of Red cup Barista using coffee machine to steam milk White Ceramic Coffee Cup and Steam Steamed Geometry 4K Motion Background Loop Steaming Coffee and Conversation 4K Stock Video Unrecognizable jogger trains outdoors Fitness girl trains outdoors Steam locomotive on the bridge - drone view in 4K Train Station Stock Video Outdoors Sants train station Train Arriving Stock Video Geysers and Steam Coming from the Ground in Iceland 4K Train Arriving At A Station Hyperlapse of automatic train moving Sunset and People Silhouette Training Yurikamome train in Tokyo, Japan Unrecognizable girl training cardio outdoors Runner trains on the bridge DBD | Train Rounding a Corner Riding a train heading towards the sunset Cinemagraph of steaming coffee on desk of man who using computer laptop. Aerial View Of Train Leaving The Station

Ferries or moving trains or at moving trains? How about 100s of monkeys jumping around? Love to see you frame, compose and expose with them jumping over your head.....how about night street festivals?I understand that folks who take 5 perfectly posed pics a week on a tripod would be satisfied with Windows built in viewer.Oh dear. It appears I've been busted. Sprung. It would appear that I must refrain from my favorite past time of shooting concrete statues from my tripod.Do these count? Keeper rate still exponentially higher than 10-20% mind you.Yeah, I'm good at screwups tooAssuming you took them, a few are ok. I think the raw viewer would have helped though Panasonic G85 Panasonic Lumix DC-G9 Panasonic 12-60mm F3.5-5.6 OIS Panasonic 45-200mm F4-5.6 II Panasonic Leica DG 50-200mm F2.8-4 +1 more "}"> Gnine • Veteran Member • Posts: 4,108 Re: Fast RawViewer 1 Wildalaskaken wrote:Gnine wrote:Wildalaskaken wrote:Lol. Guess you don't get out much. But here, I'll play, you shoot from ferries or moving trains or at moving trains? How about 100s of monkeys jumping around? Love to see you frame, compose and expose with them jumping over your head.....how about night street festivals?I understand that folks who take 5 perfectly posed pics a week on a tripod would be satisfied with Windows built in viewer.Oh dear. It appears I've been busted. Sprung. It would appear that I must refrain from my favorite past time of shooting concrete statues from my tripod.Do these count? Keeper rate still exponentially higher than 10-20% mind you.Yeah, I'm good at screwups tooAssuming you took them, a few are ok. I think the raw viewer would have helped thoughI see. So now you accuse me of plagiarism and theft. Classy. Go choof another bong dude.PS -I can email you the original files if you like. Not sure if that will help your paranoia though "}"> stateit • Senior Member • Posts: 1,856 Re: Fast RawViewer gwydionjhr wrote:One alternative if you shoot jpg + raw is a Win 10 app called "Photo Cleanup Utility". I cull viewing my jpgs, and then PCU goes through the folder and deletes any RAW files that don't have a matching .jpg. for that heads up.That will fit in with my workflow.Here's another trick:Ages ago I wrote a batch file to drop into a folder and click on to split raw files into a new subfolder named 'RAW', which I still use after every intial cull :mkdir RAWmove *.orf RAWmove *.xmp RAWmove *.CR2 RAWmove *.ORF RAWmove *.dop RAWmove *.RW2 RAWThis deals with olympus, canon and panasonic raws and any .xmp and DXO sidecars.You can add a line for any other file typeSimply put the above text into an empty text

Train yourself anywhere! Play immediately. Play Repeatedly.With iRunTrains, you're just seconds away from fun. It's fun for any age and perfect for enthusiasts and novices alike! Play immediately; play repeatedly. A real 3D simulator! Watch and run multiple trains from any position or ride them like the engineer!Apple-featured "New and Noteworthy"**We're celebrating 9 years on the App Store. Thanks for all your support!!**See more screenshots and video at love iRunTrain's fun and innovative features. It's the most original train simulator!- No big setup or learning curve; drive the trains immediately - You control 'em with intuitive train controls - Run multiple trains on each layout- Track switching; switch the tracks just in time! - Variable speed train throttle- Ride the trains and keep an eye on your caboose!- 6 Awesome dynamic views to watch your trains- Seaside setting with loading dock- Full touch-gesture viewing and control- Pinch to zoom; Tap sides to pan; Drag to change view angle- No points, scoring, or end game; just enjoy the rails Awesome Features: - 2 Free, awesome track layouts! - in-App purchase unlocks all larger, multi-level tracks - 3D rails and track bed- Add your photo to the billboard- Pushbutton train selector - Speedometers - Moving traction bars!- Turn switch control box- Multifunction view selector and status display- Help overlay for controls- Choose your terrain colors and textures3D Audio - Engine sounds - Track sounds - Bells and Whistles- Pitch and volume based on proximity and speedManual and Dynamic Views- Chase the train in a helicopter (with sounds!)- Ride the train engine or ride the caboose and more- Can you survive Turnout City without a collision?- View info guidesPhysics n' more - Train acceleration/deceleration - Collision & Derailment detection - Rising tide and shimmering waves- Movings cloudsControl the trains! Run 'em. Ride 'em. Chase 'em. Bump 'em. Park 'em!Thanks for helping us make iRunTrains a success!Also check out our version for the iPhone!Support: us on Twitter: @iRunTrainsalso Follow us on Twitter: @onomaly

1. IntroductionStrong crosswinds may cause safety problems, such as shaking, derailment and overturning of travelling trains [1,2,3]. Apart from the limitation on the operating speed and the cancellation of train trips in strong-wind scenarios, wind barriers have also been used to mitigate the negative effects of crosswind on trains [3,4], and are considered an effective and economical way [5,6] to improve the safety of travelling trains. However, for the bridges, this approach may in return cause additional wind loads associated with the aerodynamic effects acting on the wind barriers, which are transferred to the bridge. In order to ensure the safety of both travelling trains and the bridge, it may be required for the wind barrier to allow more or less wind to pass depending on the wind pressure level such that the wind load transferred to the structure can be reduced.Wind tunnel tests [6,7,8,9] and numerical modelling [10,11,12,13] have been conducted to investigate the associated parameters to understand the aerodynamic performance of wind barriers and trains. For example, the effects of airflow speed, train speed and wind directions on the aerodynamic performance of a train with a rigid wind barrier were investigated through wind tunnel tests. It was concluded that a scenario with a static train is more critical than those with moving trains in terms of the mechanical loads on the train caused by the crosswind; meanwhile, the effect of airflow speeds on the aerodynamic coefficients of the train is insignificant [6]. In order to investigate the effect of the relative angle between the crosswind and the train (i.e., the yaw angle) on the mechanical responses of the train–barrier–bridge system, a numerical model of a railway system supported by a steel truss bridge was established using a computational fluid dynamics (CFD) method, where the simulation results were compared with those from wind tunnel experiments. It was suggested that airflow with a yaw angle of 90° (i.e., perpendicular to the travelling direction of the train) would lead to the maximum side force and overturning moment on the train [13]. According to the results from wind tunnel experiments on a

Description: Traffic Mania is an addictive and challenging game where your main goal is to avoid collision. Do you think that's easy? Well, you will change your mind when you get into the world of fast moving trucks, cars, buses, and trains. The city policemen are too busy and need you to help them keep the city streets safe. It is not easy as it seems to control traffic on your own, because you will have to concentrate and pay attention to every single detail. Your main goal is to manage all the vehicles in the city and avoid crashes. You have to tap on the car when you need to stop it in order to avoid collisions. When the vehicle is stopped, you can make it move by tapping again. Sometimes, you will have to control more than one car at the same time. The highest score you reach, the better place you will earn at the leader's board. The first level is the easiest, and it is designed to help you get the idea of what you should do and how to control the cars. When you reach the next level, you will realize that things are getting more complicated. There are more crossroads, much more vehicles on the streets and sometimes you will have to pay attention to the railway and fast-moving trains. You cannot stop the train, and that is very important to remember. So, when the car gets closer to the railway, make sure that you tap it on time to stop and avoid a collision. The emergency vehicles cannot be stopped either. The sound of it will help you to notice them before it is too late. This addictive and challenging game will exceed your expectations. This game is a simulator of everyday city