1.

xample 8.2 The odometer of a car reads2000 km at the start of a trip and2400 km at the end of the trip. If thetrip took 8 h, calculate the averagespeed of the car in km h1 and m s

Answer»

Actual distance = 2,400-2,000km=400km

Time taken = 8 hours

Average speed = Total distance÷Total time = 400km÷8hours = 50km/h

400km = 4,00,000 m8 hours = 28,800seconds

Average speed = Total distance ÷ Total time =4,00,000m÷28800seconds= 13.89m/s

2000 +2400 = 4400 /2= 2200



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