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CBSE Class 9 Answered

At a certain instant, an auto driver is driving at a speed of 30 kmh—1.Then he uniformly accelerates the auto and after 2.5 minutes,the speed of his auto becomes 60kmh—1.What is the average speed of the auto?  
Asked by nuzhaty5 | 16 Apr, 2019, 12:30: PM
answered-by-expert Expert Answer
For uniform acceleration, average speed = (1/2)[ initial speed + final speed ] = (1/2) ( 30 + 60 ) = 45 kmph
Answered by Thiyagarajan K | 16 Apr, 2019, 12:47: PM

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CBSE 9 - Physics
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