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A large wooden crate is pushed up an inclined plane by a worker. The inclined plane has a rough surface. Three forces act on the crate: gravitational force, the applied force from the worker, and the frictional force. Which of the following correctly identifies the signs on the work done by these three forces as the crate moves up the ramp at a constant speed? A. The applied force => positive work, gravity => positive work, friction => negative work B. The applied force => negative work, gravity => positive work, friction => negative work C. The applied force => positive work, gravity => negative work, friction => negative work D. The applied force => positive work, gravity => negative work, friction => positive work

A large wooden crate is pushed up an inclined plane by a worker. The inclined plane has a rough surface. Three forces act on the crate: gravitational force, the applied force from the worker, and the frictional force. Which of the following correctly identifies the signs on the work done by these three forces as the crate moves up the ramp at a constant speed? A. The applied force => positive work, gravity => positive work, friction => negative work B. The applied force => negative work, gravity => positive work, friction => negative work C. The applied force => positive work, gravity => negative work, friction => negative work D. The applied force => positive work, gravity => negative work, friction => positive work

College Physics
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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**Question:** A large wooden crate is pushed up an inclined plane by a worker. The inclined plane has a rough surface. Three forces act on the crate: gravitational force, the applied force from the worker, and the frictional force. Which of the following correctly identifies the signs on the work done by these three forces as the crate moves up the ramp at a constant speed? - **A.** The applied force => positive work, gravity => positive work, friction => negative work - **B.** The applied force => negative work, gravity => positive work, friction => negative work - **C.** The applied force => positive work, gravity => negative work, friction => negative work - **D.** The applied force => positive work, gravity => negative work, friction => positive work
Transcribed Image Text:**Question:** A large wooden crate is pushed up an inclined plane by a worker. The inclined plane has a rough surface. Three forces act on the crate: gravitational force, the applied force from the worker, and the frictional force. Which of the following correctly identifies the signs on the work done by these three forces as the crate moves up the ramp at a constant speed? - **A.** The applied force => positive work, gravity => positive work, friction => negative work - **B.** The applied force => negative work, gravity => positive work, friction => negative work - **C.** The applied force => positive work, gravity => negative work, friction => negative work - **D.** The applied force => positive work, gravity => negative work, friction => positive work
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