# Train Passes a Moving Object in the Same Direction

When train passes a moving object in the same direction

Let length of train = l meters and speed of train = x km/hr

Speed of the object = y km/hr and relative speed = (x – y) km/hr

Then, time taken by the train to pass the moving object = l meters/(x – y) km/hr

Now we will learn to calculate when train passes a moving object in the same direction.

Solved example:

A train 165 m long is running at the speed of 60 km/hr. In what time will it pass a man who is running at the speed of 6 km/hr in the same direction in which the train is moving?

Solution:

Man moving in the same direction of the train

Speed of train relative to the man = (60 – 6) km/hr

= 54 km/hr

= (54 × 5/18) m/sec

= 15 m/sec

Time taken by the train to cross a man = distance/speed

= length of train/speed of train relative to man

= 165 m/15 m/sec

= 11 sec

Speed of Train

Relationship between Speed, Distance and Time

Conversion of Units of Speed

Problems on Calculating Speed

Problems on Calculating Distance

Problems on Calculating Time

Two Objects Move in Same Direction

Two Objects Move in Opposite Direction

Train Passes a Moving Object in the Opposite Direction

Train Passes through a Pole

Train Passes through a Bridge

Two Trains Passes in the Same Direction

Two Trains Passes in the Opposite Direction