Question

A train 150m long crosses a tree in 6 seconds.what is the speed of the train in km/hr?​

Answer 1

Answer:

25 m/s

Step-by-step explanation:

So, we need to find the speed in the given question.

Distance travelled by the train = 150m

Time for travelling = 6 sec

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

$Speed = \frac{150}{6} = 25$ m/s

Answer 2

$\sf \Large Solution!!$

$\sf \large Given:$

$\sf \to Distance=150\:m$

$\sf \to Time=6\:seconds$

$\sf \large Formula:$

$\sf \to Speed=\dfrac{Distance}{Time}$

$\sf \large So,$

$\sf \to Speed=\dfrac{150\:m}{6\:seconds}$

$\sf \to Speed=25\:m/s$

$\sf \large Conversion\:of\:m/s\:into\:km/h:$

$\sf \to 1\:km=1000\:m$

$\sf \to 1\:hour=3600\:seconds$

$\sf \to \dfrac{3600}{1000}=3.6 \:km/h$

$\sf \to Speed=25\times 3.6\:km/h$

$\sf \blue{Speed=90\:km/h}$