You drive 4.00 mi at 30.0 mi>h and then another 4.00 mi at 50.0 mi>h. (a) Is your average speed for the 8.00-mi trip greaterthan, less than, or equal to 40.0 mi>h? (b) Which of the following is the best explanation for your prediction?I. The average of 30.0 mi>h and 50.0 mi>h is 40.0 mi>h, and hence this is the average speed for the trip.II. You go farther during the 50.0 mi>h part of the trip, and hence your average speed is greater than 40.0 mi>h.III. You spend more time during your trip traveling at 30.0 mi>h, and hence your average speed is less than 40.0 mi>h.
You drive 4.00 mi at 30.0 mi>h and then another 4.00 mi at 50.0 mi>h. (a) Is your average speed for the 8.00-mi trip greaterthan, less than, or equal to 40.0 mi>h? (b) Which of the following is the best explanation for your prediction?I. The average of 30.0 mi>h and 50.0 mi>h is 40.0 mi>h, and hence this is the average speed for the trip.II. You go farther during the 50.0 mi>h part of the trip, and hence your average speed is greater than 40.0 mi>h.III. You spend more time during your trip traveling at 30.0 mi>h, and hence your average speed is less than 40.0 mi>h.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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You drive 4.00 mi at 30.0 mi>h and then another 4.00 mi at 50.0 mi>h. (a) Is your average speed for the 8.00-mi trip greater
than, less than, or equal to 40.0 mi>h? (b) Which of the following is the best explanation for your prediction?
I. The average of 30.0 mi>h and 50.0 mi>h is 40.0 mi>h, and hence this is the average speed for the trip.
II. You go farther during the 50.0 mi>h part of the trip, and hence your average speed is greater than 40.0 mi>h.
III. You spend more time during your trip traveling at 30.0 mi>h, and hence your average speed is less than 40.0 mi>h.
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