A Train 125 M Long Passes A Man, Running At 5 Km/hr In The Same Direc

1.	A Train 125 M Long Passes A Man, Running At 5 Km/hr In The Same Direction In Which The Train Is Going, In 10 Seconds. The Speed Of The Train Is?
Answer» SPEED of the TRAIN relative to man = (125/10) m/sec = (25/2) m/sec. [(25/2) * (18/5)] km/hr = 45 km/hr. Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr. x - 5 = 45 ==&GT; x = 50 km/hr. Speed of the train relative to man = (125/10) m/sec = (25/2) m/sec. [(25/2) * (18/5)] km/hr = 45 km/hr. Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr. x - 5 = 45 ==> x = 50 km/hr.

A Train 125 M Long Passes A Man, Running At 5 Km/hr In The Same Direction In Which The Train Is Going, In 10 Seconds. The Speed Of The Train Is?

Answer»

SPEED of the TRAIN relative to man = (125/10) m/sec = (25/2) m/sec. [(25/2) * (18/5)] km/hr = 45 km/hr.

Let the speed of the train be x km/hr.

Then, relative speed = (x - 5) km/hr.

x - 5 = 45 ==&GT; x = 50 km/hr.

Speed of the train relative to man = (125/10) m/sec = (25/2) m/sec. [(25/2) * (18/5)] km/hr = 45 km/hr.

Let the speed of the train be x km/hr.

Then, relative speed = (x - 5) km/hr.

x - 5 = 45 ==> x = 50 km/hr.