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Questions and Answers
What is the equation for work when the force and displacement are constant and the angle between them is also constant?
What is the equation for work when the force and displacement are constant and the angle between them is also constant?
- $W = |F||s|$
- $W = |F||s|\cos(\theta)$ (correct)
- $W = |F||s|\sin(\theta)$
- $W = \frac{|F|}{|s|}\cos(\theta)$
When does a force do negative work?
When does a force do negative work?
- When it has a component perpendicular to the direction of the displacement at the point of application
- When it has a component equal to the direction of the displacement at the point of application
- When it has a component opposite to the direction of the displacement at the point of application (correct)
- When it has a component in the direction of the displacement at the point of application
What is the SI unit of work?
What is the SI unit of work?
- Coulomb (C)
- Joule (J) (correct)
- Newton (N)
- Watt (W)
Work transfers energy from...
Work transfers energy from...
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Work is a scalar quantity, so it has...
Work is a scalar quantity, so it has...
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