Question

(ii) How long will a 50-m-long train travelling at 72 km/h take to cross a pole?​

Answer 1

Answer:

2.5 sec

Step-by-step explanation:

distance = 50 m

speed = 72

(72 × 5/18) m/s

20 m/s

speed = d/t

time = d/s

= 50/20

= 2.5 sec

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