Ratnagiri express run at a speed of 120 km/h if it crosses a signal in 15 second find its length
Answers
Step-by-step explanation:
In this question the speed of train is in km/hr but time taken by a train to cross a pole is in 'sec'.
In this question the speed of train is in km/hr but time taken by a train to cross a pole is in 'sec'.So, first we convert the unit of speed.
In this question the speed of train is in km/hr but time taken by a train to cross a pole is in 'sec'.So, first we convert the unit of speed.Conversion, 1km/hr = (5/18) m/sec
In this question the speed of train is in km/hr but time taken by a train to cross a pole is in 'sec'.So, first we convert the unit of speed.Conversion, 1km/hr = (5/18) m/sec=> 120 km/hr = 120×5/18 =(100/3) m/sec
In this question the speed of train is in km/hr but time taken by a train to cross a pole is in 'sec'.So, first we convert the unit of speed.Conversion, 1km/hr = (5/18) m/sec=> 120 km/hr = 120×5/18 =(100/3) m/secNow, length of train = speed of train × time taken by it to cross the pole = (100/3)×9 =300m