Respuesta :
A car travels with a constant velocity of 60mph for a time of 4 hours. for the next two hours, it travels with a constant velocity of 70mph. The average velocity for the 6 hours is 63.3mph
The average velocity of the car is calculated as the total distance covered divided by the total time taken for the journey.
Given the distance covered by the car in the first half of the journey
= Speed x Time
= 60mph x 4 hr
= 240m
Similarly, the distance covered by the car in the second half of the journey
= Speed x time
= 70mph x 2hr
= 140m
Hence, total distance covered = 240m + 140m = 380m
Total time taken for the journey = 6 hr
Average speed = [tex]\frac{Total distance }{Total time}[/tex]
Average speed = [tex]\frac{380}{6}[/tex]
= 63.3mph
Learn more about average velocity here
brainly.com/question/862972
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