Question

the speed of the train is 144 kilometre per hour find its speed in metre per second.answer is 40.how? please can anyone find this answer for me .​

Answer 1

Answer:

40 m/s

Step-by-step explanation:

The speed of the train is 144 km/hour

:. Speed = 144 km/hour

              = 144 * $\frac{1 km}{1 hour}$

              = 144 * $\frac{1000 m}{3600 s}$    [1 km = 1000 meter, 1 hour= 60 min= 60*60 =3600 sec]

              = $\frac{144*1000}{3600}$ m/s

              = 40 m/s