Physics, 26.10.2019 00:43 rayray2083
You are driving on the highway at constant speed of 60 mph for 1 hour and then 70 mph for 2 hours. what was your average speed for the 3 hours trip?
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You are driving on the highway at constant speed of 60 mph for 1 hour and then 70 mph for 2 hours. w...
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