Question

The odometer of a car reads 3000 Km at start of a trip and 3800 Km at the end of the trip. If the trip took 8 hours, calculate the speed of the car in Km/h.

Answer 1

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 2

Answer:

see image for explaination