Example 8.2 The odometer of a car reads
2000 km at the start of a trip and
2400 km at the end of the trip. If the
trip took 8 h, calculate the average
speed of the car in kmh and ms.
Answers
Answered by
3
Answer:
13.9 m/s
Explanation:
the odometer is showing 2000 km at the start of the trip and is showing 2400 km at the end of the trip. It is given that the total time taken to complete the trip is 8 h as shown in figure 1. So we are getting the average speed of the car as 50 km/h or 13.9 m/s.
Answered by
3
Answer:
50 km h-¹ or 13.9 m s-¹
Explanation:
distance covered by the car,
s=2400 km – 2000 km = 400 km
Time elapsed, t = 8 h
Average speed of the car is
Vav = s/t = 400km/8
=50 km h-¹
50 km/h x 1000m / 1km x 1h/3600s
= 13.9m s-¹
The average speed of the car is 50 km h-¹ or 13.9 m s-¹
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