A 50 m long train passes over a 250 m long bridge at a velocity of 60 km/h. How long will it take to pass completely over the bridge?
A. 18 s
B. 20 s
C. 24 s
D. none of these.
Answer:A
A 50 m long train passes over a 250 m long bridge at a velocity of 60 km/h. How long will it take to pass completely over the bridge?
A. 18 s B. 20 s C. 24 s D. none of these.