Practicing Success
750 metres long train crosses a stationary pole in 15 sec. Travelling at the same speed, this train crosses a bridge completely in 25 sec. What is the length of this bridge? |
1000 750 1250 500 |
500 |
Train crosses a pole in 15 sec . Speed of train = \(\frac{Distance }{time}\) = \(\frac{750}{15}\) = 50 m/sec Time to cross bridge = 25 sec Total distance = Length of train + Length of bridge Total distance = 50 × 25 = 1250 m 1250 = 750 + length of bridge Length of bridge = 1270 - 750 = 500 m |