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An car moves through 20 m in 3 minutes and the next 50 km at a speed of 100 km/h. What is the approximate average speed
of the car?
22.38 m/s
20 m/s
25.26 m/s
26.28 m/s
- The car first moves 20 meters in 3 minutes.
- Convert 3 minutes to seconds: 3 minutes × 60 seconds/minute = 180 seconds.
- Speed for 20 meters: 20 m / 180 s = 0.111 m/s.
- Next, the car moves 50 kilometers at 100 km/h.
- Convert 50 kilometers to meters: 50 km × 1000 m/km = 50000 meters.
- Time taken for 50 km at 100 km/h: 50 km / 100 km/h = 0.5 hours = 1800 seconds.
- Total distance traveled: 20 m + 50000 m = 50020 m.
- Total time taken: 180 s + 1800 s = 1980 s.
- Average speed: Total distance / Total time = 50020 m / 1980 s ˜ 25.26 m/s.
- Option 3: 25.26 m/s
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