an object travels with a speed of 80km/hr for 20 minutes and then with the speed of 60km/h for 30 minutes find the average speed
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Answer:
the average speed was = Total distance/total time = 26.664+30.006/50×60 = 18.89m/s Answerr..
Step-by-step explanation:
1st speed = 80000/20×60 =22.23 m/s then total distance = 22.23×20×60 =26.664 km
2nd speed = 60000/60×60 =16.67
total distance = 16.67×30×60 =30.006km
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