. A large box slides first up, and then down, an incline. The incline has friction. Which of the following statements is true? a. The friction force does negative work on the box as it slides up the incline, and negative work on the box as it slides down the incline. b. The friction force does positive work on the box as it slides up the incline, and negative work on the box as it slides down the incline. c. The friction force does negative work on the box as it slides up the incline, and positive work on the box as it slides down the incline. d. The friction force does positive work on the box as it slides up the incline and positive work as it slides down the incline.

. A large box slides first up, and then down, an incline. The incline has friction. Which of the following statements is true? a. The friction force does negative work on the box as it slides up the incline, and negative work on the box as it slides down the incline. b. The friction force does positive work on the box as it slides up the incline, and negative work on the box as it slides down the incline. c. The friction force does negative work on the box as it slides up the incline, and positive work on the box as it slides down the incline. d. The friction force does positive work on the box as it slides up the incline and positive work as it slides down the incline.

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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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.

Question

17. A large box slides first up, and then down, an incline. The incline has friction. Which
of the following statements is true?
a. The friction force does negative work on the box as it slides up the incline,
and negative work on the box as it slides down the incline.
b. The friction force does positive work on the box as it slides up the incline,
and negative work on the box as it slides down the incline.
c. The friction force does negative work on the box as it slides up the incline,
and positive work on the box as it slides down the incline.
d. The friction force does positive work on the box as it slides up the incline
and positive work as it slides down the incline.

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