60 किमी. प्रति घंटा की चाल से जा रही एक रेलगाड़ी एक खंभे को 30 सेकेंड में पार कर जाती है। गाड़ी की लंबाई कितनी होगी
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Answer:
500
explanation
The length of pole is considered as negligible i.e.=0 <br> i.e., When a train crosses a pole, it covers the distance equal to its length. The time taken by the train =30 seconds and speed =60 km/hr then the length of the train .
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