A train 110 m long moving at speed of 45 km/hr crossesa train 90 m lon

1.	A train 110 m long moving at speed of 45 km/hr crossesa train 90 m long coming from opposite direction in10 seconds. Find the speed of second train.45.
Answer» Let speed of second train be vLength of first train = 110mLength of second train = 90mTime taken to cross = 10 sec Distance = speedtime200 = (45 + v))1020 = 45 + vv = - 25 Speed of second train = - 25m/sec Negative sign for opposite direction

A train 110 m long moving at speed of 45 km/hr crossesa train 90 m long coming from opposite direction in10 seconds. Find the speed of second train.45.

Answer»

Let speed of second train be vLength of first train = 110mLength of second train = 90mTime taken to cross = 10 sec

Distance = speed*time200 = (45 + v))*1020 = 45 + vv = - 25

Speed of second train = - 25m/sec Negative sign for opposite direction