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2 years ago

You take a trip to Oklahoma City. The turnpike between Tulsa and OKC

Physics

1 answer:

laiz [17]2 years ago

7 0

$speed_{avg} = \frac{Σ\:distance}{ total\: time}$

So, according to the question:

distance = 90 miles

time = 1h 45min + 15 min + 1h = 3h

$Therefore:\\ speed_{avg} = \frac{90}{3} mph \\ = \boxed {30 \: mph}$

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