A train takes 9 s to cross a pole. If the speed of the train is 48 km/h, then length of the train is?
Correct Answer: 120 m
Explanation:
Let the length of the train be L m.
New , speed = 48 km/h = 48 x (5/18) m/s
Train takes 9 s to cross a pole.
∴ : Length of train, L = Speed x Time
= 48 x (5/18) x 9 = 120 m
