Question

Distance travelled by a train is 495 km in 4 hours 30 minutes, what is its speed in m/s? 
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Answer 1

9.09m/s

Step-by-step explanation:

Speed = Distance/Time

Distance = 495km

Time = 4 hr 30 min = 4 hr 1/2hr = 4.5 hr

Therefore, Speed = 495/4.5 = 110km/h

Now to convert km/h to m/s

110 x 1000/ 110 x 110

110 cancels out each other, we are now left with

1000/110 = 9.09m/s