Question

6. Two trains of length 275m and 325m are running in opposite directions on parallel tracks. Find the
time taken to cross each other if their speeds are 38km/h and 34 km/h respectively

Answer 1

Answer:

Step-by-step explanation:

Given that,

Length of train 1 is 275 m and length of train 2 is 320 m. Speed of first train is 38 km/h and that of train 2 is 34 km/h.

To find,

The time taken to cross each other.

Solution,

Two trains are running in opposite direction. Their relative velocity is calculated as :

v = 38 km/h + 34 km/h

v = 72 km/h

or

v = 20 m/s

Total distance = length of train 1 + length of train 2

D = 275 m + 320 m

D = 595 m

Let t is the time when they cross each other. So,

So, it take 8.26 seconds to cross each other.