A car travels 300m at a uniform speed of 18km/h and the next 300m at a uniform speed of 36km/h.find its average speed
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Answer:
20/3
Explanation:
18km/hr=5/18*18
=5m/s
36 km/hr=5/18*36
=10m/s
Time=Distance/Speed
=300/5
=60s
Time=Distance/Time
=300/10
=30s
Average Speed = Total distance/Total time
=600/90
=60/9
20/3m/s
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