Power And Force
A cyclist maintains constant power P while climbing of slope at constant speed v. Component of force along motion is:
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About This Question
- Subject
- physics
- Chapter
- work, energy and power
- Topic
- power and force
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
P/v
From the instantaneous power formula P=F⋅v, if the force and velocity are in the same direction: P=F⋅v Since both P and v are constant, the force applied along the direction of motion must be: F=vP. This force must overcome the components of gravity and friction.
This medium difficulty physics question is from the chapter work, energy and power, covering the topic of power and force. It appeared in the 2025 exam.
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