A car travels up a hill at a constant speed of 40 km/h and re turns down
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A car travels up a hill at a constant speed of 40 km/h and re turns down the hill at a constant speed of 60 km/h. Calculate the average speed for the round trip.
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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