Practicing Success
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 |
25.26 m/s |
Time taken to travel 50 km at 100 km/h = \(\frac{Distance}{Speed}\) = \(\frac{50}{100}\) = 0.5 hours = 30 minutes Total distance = 50 × 1000 + 20 = 50020 Total Time = 3 + 30 = 33 minutes = 33 × 60 = 1980 seconds Average speed = \(\frac{50020}{1980}\) = 25.26 m/sec |