Question

a train 100m along is moving with constant velocity of 60km/h find the time it to cross the bridge 1km long​

Answer 1

Explanation:

1km = 1000m

Total distance = 100 + 1000 = 1100m

Velocity means Speed = 60km/hr

60×5/18 = 16.7m/s

Time = Distance/Speed

=1100/16.7

= 65.86

= 66sec (approx.)

Answer 2

Answer:

velocity =Distance /time

v=60km/h =60into 5/18=50/3

then, t=100+1000/50/3=1100/50/3=22into3= 66sec