Question

1. Find the time taken (in seconds) by a train 300 m long, running at a speed of 54 km/hr in
crossing the pole.
11 Ann
at of 112 at 14% cimnle interest

PLEASE HELP ME!!!
thank you :)​

Answer 1

Step-by-step explanation:

First convert speed of km/hr to m/s

Therefore,

$54 \times \frac{5}{18} = 15\frac{m}{s}$

therefore

$time = \frac{distance}{speed}$

$\frac{300}{15} = 20seconds$

Answer 2

Step-by-step explanation:

Here distance = length of the train

t= D/s

= 300m/ 54km/h

= 300m× h/54km

= 300m× 60×60 sec/ 54000m

= 30×36 sec/ 54

= 30×4 sec/6

= 5×4 sec

= 20 sec.