The train running at the speed of 72 kn/hr goes past a pole in 15 s . What is the length of the train?

Correct option is C

Given:

Speed of the train = 72 km/hr

Time taken to pass the pole = 15 seconds

Formula Used:

Speed (m/s) = Speed (km/hr) × $$(\frac{5}{18})$$​​

Length of Train = Speed × Time

Solution:

Convert speed from km/hr to m/s

Speed = 72 × $$(\frac{5}{18})$$​ = 20 m/s

Use the formula: Length = Speed × Time

Length = 20 × 15 = 300 meters

Length of the train is 300 meters.