20. A car travels 20 km in 20 minute. Find the speed
of car (a) kmh-1, (b) ms-1.
[(a) 60 kmh-1 (b) 16.67 ms-1
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Answer: speed = distance/time
Explanation:
Speed = 20km/20minute
=1km/1minute
60km/60minutes
=60km/h
Ans) a
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