Question

6-The distance around a field is 540 m. Vijay runs around the field 8 times in half
an hour. What is his average speed in m/s.
(a) 2.0 m/s
(b) 2.4 m/s
(c) 3.4 m/s
(d) 90 m/s​

Answer 1

Answer:

2.4 m/s is the answer

Step-by-step explanation:

He covers 540m of 8 times in 1/2 hour

so, he covers

540m of 16 times in 1 hour

So, speed = distance/time

= 0.540*16/1 ( note:-540 is meters convert to km)

= 8.64 km/hr

Now, Convert km/hr to m/sec to get the answer

To convert km/hr to m/sec :-

m/hr =5/18*km/sec

So, 5/18*8.65 = 2.4m/sec

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