SOLUTION: Determine the average velocity and total time for a car that travels 54 miles per hour for 90 miles and hurries home the same distance at 67.5 miles per hour
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-> SOLUTION: Determine the average velocity and total time for a car that travels 54 miles per hour for 90 miles and hurries home the same distance at 67.5 miles per hour
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Question 1048256: Determine the average velocity and total time for a car that travels 54 miles per hour for 90 miles and hurries home the same distance at 67.5 miles per hour Found 2 solutions by Boreal, Alan3354:Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! The car travels for 1 hour 40 minutes or 5/3 hours
On the way home, it travels for 90/67.5 hours or 4/3 hours.
The total distance was 180 miles.
The total time was 3 hours.
The average speed was 60 mph.
You can put this solution on YOUR website! Determine the average velocity and total time for a car that travels 54 miles per hour for 90 miles and hurries home the same distance at 67.5 miles per hour
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Avg speed of a round trip = 2*r1*r2/(r1+r2)
= 2*54*67.5/(54 + 67.5)
= 60 mi/hr
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Notice that the distance is not relevant.
