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Questions and Answers
What is the formula for work when the force and the displacement are constant and the angle between them is also constant?
What is the formula for work when the force and the displacement are constant and the angle between them is also constant?
- $W = |F| \cdot |s| \cdot \tan(\theta)$
- $W = |F| \cdot |s| \cdot \theta$
- $W = |F| \cdot |s| \cdot \sin(\theta)$
- $W = |F| \cdot |s| \cdot \cos(\theta)$ (correct)
When does a force do negative work?
When does a force do negative work?
- When its magnitude is large
- When it has a component opposite to the direction of the displacement (correct)
- When it is applied for a long time
- When it has a component in the direction of the displacement
What is the SI unit of work?
What is the SI unit of work?
- Newton (N)
- Watt (W)
- Joule (J) (correct)
- Coulomb (C)
What type of quantity is work?
What type of quantity is work?
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In the context of work, when is work done by the gravitational force positive?
In the context of work, when is work done by the gravitational force positive?
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