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Question
A car travel 30km at a uniform speed of 40km/h and next 30km at a uniform speednof 20km/h . Find iys avaerage speed
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Solution
Dear student
Average speed = Total distance / total time
Total time taken = 30/40 + 30/20 = 3/4 + 3/2 = 9/4 hr
Average speed = 60 / (9/4) = 26.67 km/h
Regards
Average speed = Total distance / total time
Total time taken = 30/40 + 30/20 = 3/4 + 3/2 = 9/4 hr
Average speed = 60 / (9/4) = 26.67 km/h
Regards
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