Question

Two train A and B are each 50 m long are moving parallel toward each other at speed 10 m/s and 15 m/s respectively. In what time will they completely pass each other

Answer 1

relative length of both the trains = 50+50

=>100

relative speed of the trains = 15-(-10)

=>25

so time to cross each other = distance/speed

=> 100/25

=> 4

solution is 4 s

Answer 2

Hi the answer is 4 sol answer