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Q. The odometer of a car reads 2000 Km at the start of a trip and 2400 km at a End of the trip. if the trip took 8h, calculate the average speed of the car in km h·1 and m s·1.
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Explanation:
It is given that the total distance travelled by the car is 2400 km-2000 km = 400 km, that is, 400000 m and the total time taken =8 hours, that is, 8×60×60=28800seconds..
Average speed in km/hr = total distance/total time = 400/8 = 50 km/hr.
Average speed in m/s = total distance/total time = 400000/28800 = 13.89 m/s.
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Answer:
= 400km / 8h
= 50 km h-¹
=50 km /h × 1000m/1km × 1h / 3600s
= 13.9 m s -¹
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