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If the crate described in question #7 was accelerating down the ramp instead of moving at a constant speed up the ramp, would your answer change? A. Yes B. No C. It depends upon the ratio of the applied force to the friction force. D. It depends upon the rat + forco

If the crate described in question #7 was accelerating down the ramp instead of moving at a constant speed up the ramp, would your answer change? A. Yes B. No C. It depends upon the ratio of the applied force to the friction force. D. It depends upon the rat + forco

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Please solve question 8 from the information in #7. THANKS
## Physics Problem Set ### Question 7 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 ### Question 8 **If the crate described in question #7 was accelerating down the ramp instead of moving at a constant speed up the ramp, would your answer change?** A. Yes B. No C. It depends upon the ratio of the applied force to the friction force. D. It depends upon the ratio of the applied force to the weight force.
Transcribed Image Text:## Physics Problem Set ### Question 7 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 ### Question 8 **If the crate described in question #7 was accelerating down the ramp instead of moving at a constant speed up the ramp, would your answer change?** A. Yes B. No C. It depends upon the ratio of the applied force to the friction force. D. It depends upon the ratio of the applied force to the weight force.
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