Question

with a speed of 60km/h, a train crosses the pole in 24 seconds. Find the length of the train.
(1) 300m
(2) 400m
(3) 240m
(4) 600m​

Answer 1

Step-by-step explanation:

The train crosses the pole in 9 seconds meaning that it travels its length in these 9 seconds.

Therefore the distance travelled by the train is the length of the train. Convert the given velocity to m/s or the time to hours for correct calculation.

1 km = 1000 m. 1hr = 3600s

Velocity = 60 x 1000 / 3600 = 50/3 m/s.

Now distance = velocity x time

= 50 / 3 × 9

= 50 x 3

= 150 m

Therefore the length of the train is 150 metres. (

0.15 km)

Answer 2

Answer:

(2) 400 m

Step-by-step explanation:

Speed of train = 60 Km/h

Time in which train crosses a pole = 24 s

Length of train = Distance covered in 24 s

Using formula:

Distance = Speed × Time

Distance = 60 Km/h × 24 s

Convert Km into m and Hour into seconds

Distance = (60 × 1000 ) m/s / (60 × 60)  × 24 s

Distance = 400 m

Thus, the length of train = 400 m.