Question

) A person travels a distance of 72km in 4hrs. Calculate the average speed in m/s. ​

Answer 1

Answer:

1 hr = 60 min

4×60= 240 min

72÷240 min

3.3 m/s

Answer 2

Distance travelled (d) = 72 km

Time taken (t) = 4 hrs

We know that :-

Speed (s) = Distance/Time

s = d/t

s = 72/4

Speed = 18 km/h

But we are asked to find the speed in m/s, and for that, we will multiply speed in km/h by 5/18 :-

Speed = 5/18×18

Speed = 5 m/s

The speed of the vehicle is 5m/s.