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Lemur [1.5K]
3 years ago
12

On a trip a motorist travels at 80 km/h for the first 200 km, and 60 km/h for the remainder of the trip. If the trip is 300 km i

n total, calculate the average speed for the whole trip.
Physics
1 answer:
Mamont248 [21]3 years ago
5 0
The average speed is equal to the total distance over total time. We can first find the time taken for each parts of the trip, since we already have the total distance. 

Time taken for first part: 200/80 = 2.5h

Second part: 100/60 = 5/3h

Now find the average speed:
300/(2.5+5/3)
= 72km/h
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3 years ago
If 1 gallon of a liquid weighs 4 pounds how much would one ounce weight (keep in mind that liquid ounces are different than weig
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Answer:

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