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I need some help with physics hw?
A car travels up a hill at a constant speed of 37 km/h and returns down the hill at a constant speed of 62 km/h. Calculate the average speed (in km/h) for the round trip.
i've tried 25, 49, 49.5, 50, and 99... i do NOT get whats wrong-_-
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- 1 decade agoFavorite Answer
Speed in itself has no direction just magnitude. It's a scalar quantity.
So you simply add both speeds and divide them by 2.
(37 + 62)/2 = 49.5 km/h
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