Question

A train 240m long travels with speed of 144km/h how long it will take to pass a pole and 320m long platform​

Answer 1

Answer:

14 seconds.

Step-by-step explanation:

Length of train = 240 m,

Length of platform = 320 m,

Total length = 560 m.

Speed of train in km/hour = 144,

Speed of train in m/s = 144,000/3,600 = 1440/36 = 40 m/s.

Speed = Distance traveled/Time taken.

Distance = 560 m,

Speed = 40 m/s,

∴ time = 560 meters / 40 meters per second = 14 seconds.

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Answer 2

Step-by-step explanation:

as we know that

v=s/t

we find t

so

t=v/s

as s=250m

. . . . v=144km/h

v= 144000m/3600sec

v=40m/sec

so

t=40/250

t=0.16 sec answer

t=v/s

t=40/320