marthaach533 marthaach533

29-10-2021
Mathematics

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A train travelling at 120km/hr goes through a tunnel 155m long. Calculate in seconds,the time a passenger on the train spends in the tunnel

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discipulus discipulus

29-10-2021

Answer:

[tex]120km. {hr}^{ - 1} \times \frac{5}{18} = 33.33m. {sec}^{ - 1} \\ d = vt \\ t = \frac{d}{v} = \frac{155m}{33.33m. {sec}^{ - 1} } \\ \boxed{t = 4.65sec}[/tex]

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