The odometer of a car reads 2000km at the start of a trip and 2400km at the end of the trip. If the trip took 8 h , calculate the average speed of the car in km/h and m/s
Answers
Answer:
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:
50km/h
13.8888... m/s
Explanation:
Given:
Distance at start of trip = 2000km
Distance of end of trip = 2400km
Time = 8 hours
To find:
Average speed
Average speed = distance covered / total time
Distance covered = distance at end of trip - distance at start of trip
Distance covered = 2400-2000 = 400km
Time = 8 hours
Average speed = 400/8 = 50 km/h
Average speed of car in km/h is 50 km/h
Now converting to m/s:
= 50 × 5/18
= 125/9 m/s
= 13.888.. m/s
The average speed is equal to 50 km/h and 13.8888.. m/s