Question

A 100 m long train crossed a bridge of length 200 m is 50 s with constant velocity. Find the velocity of the train. a) 6 ms b) 300 ms¯¹ c) 50 ms -¹ d) 100 ms¹

Answer 1

Answer:

Let us consider the front end of train,

So for train to cross the tunnel,

Total distance = length of train + length of tunnel

✎ Distance = 200 + 100 m = 300m

✎ velocity = $\frac{distance}{time}$

⇒ V = $\frac{300}{50}$

= 6m/s

Answer 2

Answer:

Let us consider the front end of train,

So for train to cross the tunnel,

Total distance = length of train + length of tunnel

✎ Distance = 200 + 100 m = 300m

✎ velocity =

⇒ V =

= 6m/s