An old commuter train travels a distance of 100 km from Union Station to Berkeley’s Crossing in the suburbs. Part A) Traveling at a constant speed of 45 mph, how many hours does the trip take? mph stands for miles per hour. Part B)The old train was replaced with a new electric train that has a top speed of 70 mph; however, to save money, it was decided that the train will travel half the time at 70 mph and half the time at 55 mph. How many hours does this trip take?

An old commuter train travels a distance of 100 km from Union Station to Berkeley’s Crossing in the suburbs. Part A) Traveling at a constant speed of 45 mph, how many hours does the trip take? mph stands for miles per hour. Part B)The old train was replaced with a new electric train that has a top speed of 70 mph; however, to save money, it was decided that the train will travel half the time at 70 mph and half the time at 55 mph. How many hours does this trip take?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 16P: A paper in the journal Current Biology tells of some jellyfish-like animals that attack their prey...

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An old commuter train travels a distance of 100 km from Union Station to Berkeley’s Crossing in the suburbs.

Part A) Traveling at a constant speed of 45 mph, how many hours does the trip take? mph stands for miles per hour.

Part B)The old train was replaced with a new electric train that has a top speed of 70 mph; however, to save money, it was decided that the train will travel half the time at 70 mph and half the time at 55 mph. How many hours does this trip take?

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