Question

In what time will a train 280 m long cross a pole, if its speed be 63 km/hr?

Answer 1

Answer:

16sec

Step-by-step explanation:

Answer 2

Answer

Time= 16 second

Explation

Speed= 63 km/h= 63×5/18

=35/2 m/s

Distance=280 m

Speed= Distance/Time

35/2= 280/Time

Time= 40×2/5

=80/5

=16 second

so answer will be 16 second