Question

an exprees train runing at 72 km/hr crosses a pole at 18 sec find its length​

Answer 1

Answer:

16m

Step-by-step explanation:

Speed = 72 km/hr

= 72* 5/18 m/s

= 20 m/s

20*12m = 240 m

240+80 = 320m

320/20 = 16m

Answer 2

Answer:

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