Question

A Flyover is 500m long. A 10m long bus crosses the flyover at a speed of 30m/s. Find the time taken by the bus to cross it.

Answer 1

Answer:

The time taken by the bus to cross the Flyover is 17 seconds.

Solution:

Given that,

Length of flyover = 500m

Length of bus = 10m

Hence the total distance of flyover and bus (D) = 500 + 10 = 510m   ……..(1)

Speed of Bus (S) = 30 m/s    ……..(2)

We know that,

$\text {Speed}(S)=\frac{\text { Distance }(D)}{\text { Time }(T)} \quad \ldots \ldots(3)$

From equations (1), (2) and (3) we get –

$30=\frac{510}{T}$

$T=\frac{510}{30}=17\ \text{seconds}$

Answer 2

Answer:

Given that,

Length of flyover = 500m

Length of bus = 10m

Hence the total distance of flyover and bus (D) = 500 + 10 = 510m ……..(1)

Speed of Bus (S) = 30 m/s ……..(2)

We know that,

\text {Speed}(S)=\frac{\text { Distance }(D)}{\text { Time }(T)} \quad \ldots \ldots(3)Speed(S)=

Time (T)

Distance (D)

……(3)

From equations (1), (2) and (3) we get –

30=\frac{510}{T}30=

T

510

T=\frac{510}{30}=17\ \text{seconds}T=

30

510

=17 seconds