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The work done by a centripetal force is zero because the force acts perpendicular to the direction of motion, meaning there is no displacement in the direction of the force.
A train 400 metre long takes 40 sec to cross a man running at a speed of 4 km/hr in the direction same to that of train. What is the speed of the train?
Train M, ‘x’ metres long crosses (x – 34) metres long platform in 15 seconds while train N having the length (x + 34) metres crosses the same plat...
Train ‘A’ takes 12 seconds to cross a pole and 30 seconds to cross a 360 metre long bridge. If the length of the train had been 200 metres then find...
A train of length 180 m crosses another train of length 120 m coming from the opposite direction. If the speeds of the two trains are 6 m/sec and 9 m/se...
A train has to cover a distance of 112 km in 14 hours. If it covers half journey in 3/5th time, then the speed of covering the remaining dist...
A person sees a train passing over 6 km long bridge. The length of the train is half that of bridge if the train clears the bridge in 3 mins. What is th...
A train running with a speed of 99 km/hr can cross a pole in 13 seconds and a platform in 17 seconds. Find the length of the platform.
Train M, ‘x’ metres long crosses (x – 30) metres long platform in 22 seconds while train N having the length (x + 30) metres crosses the same plat...
Train A, moving at a speed of 90 km/h, passes a stationary pole in 9.4 seconds. When encountering Train B, which is traveling towards it at a speed of 5...
