Question

a train of length 450 my crosses a pole with a speed of 72km/have how long will it take to cross the pole?​

Answer 1

answer:

lolbnndnxnxmcmncncmxmxmmxmx

Answer 2

$\sf \bf \underline{Answer:}$

22.5 seconds

$\sf \bf \underline{Explanation:}$

$\sf </p><p>Length~ of~ train= 450m \: or \: 0.450km \\\\\sf Speed ~of ~train=72km/hr \\\\\sf Now, ~Distance=Speed~ x ~time \\\\\sf 0.450= 72~ x ~t \\\\\sf t= \frac{0.450}{72} = 0.00625 hr \\\\\sf 0.00625 hr=0.375 minute= 22.5 seconds$