Power: Example
About the Lecture
The lecture Power: Example by Jared Rovny, PhD is from the course Work.
Included Quiz Questions
A motor-powered mechanical arm exerts an average force of 890 N to push large crates at a distance of 12 meters in 22 seconds. What is the average power output required of such a motor?
- 485 W
- 455 W
- 433 W
- 499 W
- 480 W
During the Powerhouse lab, Harry runs up the stairs, elevating his 102 kg body a vertical distance of 2.29 m in a time of 1.3 seconds at a constant speed. What is the power exerted by Harry in climbing the staircase?
- 1.8 x 10³ J
- 4.3 x 10³ J
- 3.2 x 10³ J
- 2.9 x 10³ J
- 1.73 x 10³ J
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Author of lecture Power: Example
Jared Rovny, PhD
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