A train that is running at the speed of 78 km/h crosses an electric pole in 9 seconds. The length of train (in meters) is?
Answer & explanation
Correct answer: option 4
Distance = Speed × Time
To convert km/h into m/sec .
X km/h × \(\frac{5}{18}\) = y m/sec
78 km/h × \(\frac{5}{18}\) = 78 × \(\frac{5}{18}\) m/sec
Distance = = 78 × \(\frac{5}{18}\) × 9 = 195 meter