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2015-06-04T17:33:56+05:30

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Unit 1=10 m/s.
Unit 2=1 km/min=60 km/hr = 60*5/18 m/s=16 2/3 m/s.
Unit 3=18 km/h=18*5/18=5 m/s.
Clearly, 5 m/s < 10 m/s < 16 2/3 m/s.
So,
18 km/h < 10 m/s < 1 km/min.
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a car travel first 30 km with a uniform speed of 60 km h and then next 30 km with a uniform speed of 40 km h. calculate i. the total time of journey. ii. the average speed of the car . please solve this
1.TOTAL TIME = 1 HOUR 15 MINUTES , A.S= 48 KM/HR .I ANSWERED LIKE THIS SINCE I WANT IT TO BE POSTED AS A SEPARATE QUESTION
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done plzz answer that question