the length of Dhauli Express is 80m and that of Purushottam Express is 120m the two trains are running in the same direction with velocities of 50 km per hour and 40 km per hour respectively what is the time required for them to cross each other
Answers
Answered by
2
Answer:
72 seconds
Step-by-step explanation:
Relative distance=120+80=200m
Relative velocity=10km/hr=25/9msec-1
time=?
S=vt
200=25/9t
200×9/25=t
t=72sec
rashmi0890:
relative velocity =10km/hr=25/9msec-1 (how)
1km/hr=5/18 msec
Similar questions