# science

posted by .

a train stooping at two stations 4km apart takes 4 min on the journey from one of the station to the other.assuming that it first accelerates with a uniform acceleration x and then that of uniform retardation Y,prove that 1/X+1/Y=2

• science -

Your umpteen posts have been removed.

Once you write up YOUR THOUGHTS about each question, please re-post, and someone here will be happy to comment.

## Similar Questions

1. ### Physics

A train travels between stations 1 and 2. The engineer of the train is instructed to start from rest at station 1 and accelerate uniformly between points A and B, then coast with a uniform velocity between points B and C, and finally …
2. ### Physics

A train travels between stations 1 and 2. The engineer of the train is instructed to start from rest at station 1 and accelerate uniformly between points A and B, then coast with a uniform velocity between points B and C, and finally …
3. ### Physics

It took a stopping train 41/4min to travel between two stations 11.2km apart.The train accelerated uniformly during the first 11/4min of the journey,and decelerated uniformly to rest during the last 3/2min of the journey.The train …
4. ### Physics

A subway train is designed with a maximum acceleration of ±0.637 m/s2 , which allows for both passenger safety and comfort. (a) If subway stations are 8.6 km apart, what is the maximum velocity that can be obtained between stations?
5. ### Physics

A train travels between stations 1 and 2. The engineer of the train is instructed to start from rest at station 1 and accelerate uniformly between points A and B, then coast with a uniform velocity between points B and C, and finally …
6. ### math

The diagram below shows the speed time graph for a train travelling between two stations. The train starts from rest and accelerates uniformly for 150 seconds. It then travels at a constant speed for 300 seconds and finally decelerates …
7. ### Calculus Help

A high-speed bullet train accelerates and decelerates at the rate of 4 ft/s2. Its maximum cruising speed is 90 mi/h. (Round your answers to three decimal places.) (a) What is the maximum distance the train can travel if it accelerates …
8. ### Physics

A train accelerates from the rest at the station A at a rate of 0.8 m/s2 for 25 s, the travels at constant velocity for 77.5 s before it comes to rest at the station B after period of retardation lasting 20 s. What is the distance …
9. ### Physics

An electric train leaves a station starting from rest and attains a speed of 72km/hr in 10 second. It travels at that speed for 120 seconds. Then it undergoes uniform retardation for 20 seconds to come to halt at the next station calculate …
10. ### Physics

An electric train leaves a station starting from rest and attains a speed of 72km/hr in 10 second. Then it undergoes uniform retardation for 20 second to come to halt at the next station then calculate i) the distance between the train …

More Similar Questions