Question

A train 100 m long is moving with a velocity of 60 km/hr .Find the time it takes to cross the bridge 1 Km long

Answer 1

Answer:

A train 100 m long is moving with a velocity of 60 km/hr. The time it takes to cross the bridge of 1 Km long is 66 sec.

Explanation:

 Given,

 Length of the train    =  100 m

 Length of bridge       =  1km = 1000m

 Total distance           =  Length of the train + Length of the bridge

                                    =  100 + 1000 = 1100m

  velocity  = 60 km/hr =  $60\times \frac{5}{18} = \frac{50}{3} m/s$

  we know,

  Velocity   =    $\frac{Distance}{Time}$

  Time        =    $\frac{Distance}{Velocity}$

                  =    $\frac{1100}{\frac{50}{3} }$   = $1100\times \frac{3}{50}$ = 66 sec