Question

Q10. A train running at a speed of 72 km/h, crosses an electric pole in 12 seconds. What is the length
of the train in metres?​

Answer 1

Step-by-step explanation:

Given :- Speed = 72km/hr

Time = 12 sec

= 12/3600 (1 hr = 3600 sec)

= 0.0034 hr

Soln:-

We Know that ,

Speed = Distance / Time

∴ 72 = Distance/0.0034

∴ Distance = 72×0.0034

∴ Distance = 0.2448 km

∴ Distance = 0.2448×1000

∴ Distance = 244.8 m

Length Of the train = 244.8 m