Question

a person is cycling parallel to a railway line at a speed of 5 km/h a train travelling in the opposite direction at 49km/h passes him in 12 sec
find the length of the train ​

Answer 1

Answer:

length of the train is 180m

Step-by-step explanation:

distace=speed×time

the distance is the length of the train.

When two objects bodies are moving in opposite directions at x km/hr and y km/hr then their relative speed=(x+y) km/hr

Therefore, relative speed=49+5=54 km/hr

Relative speed= 54 km/hr = 54 ×  (5/18)

                                           =15 m/s

time=12 sec

distance=15×12=180 m

Answer 2

Answer:

ur answer is 180m.

Step-by-step explanation:

pls mark as brainlest