A train $180$ metres long crosses a pole in $9$ seconds. Its speed is:
Practice this question from Chapter Mock 8: Speed, Time and Distance, with options and an explanation.
Question
A train $180$ metres long crosses a pole in $9$ seconds. Its speed is:
Option A
54 km/h
Option B
60 km/h
Option C — Correct answer
72 km/h
Correct choice.
Option D
81 km/h
Explanation
Speed $=180\div9=20$ m/s $=72$ km/h.