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Questions and Answers
What is the formula for work done, as per the text?
What is the formula for work done, as per the text?
- $W = F \cdot S$ (correct)
- $W = \frac{F}{S}$
- $W = F - S$
- $W = F + S$
In the context of work done, if an object undergoes a displacement 'S' while acted on by a force F making an angle θ with S, what is the work done W by the agent?
In the context of work done, if an object undergoes a displacement 'S' while acted on by a force F making an angle θ with S, what is the work done W by the agent?
- $W = F \cdot S \cdot \tan(\theta)$
- $W = F \cdot S$
- $W = F \cdot S \cdot \sin(\theta)$
- $W = F \cdot S \cdot \cos(\theta)$ (correct)
According to the text, how can the work done be obtained when a graph is plotted between force applied and displacement?
According to the text, how can the work done be obtained when a graph is plotted between force applied and displacement?
- By finding the area under the F-S graph (correct)
- By finding the slope of the F-S graph
- By finding the intersection points of the F-S graph
- By finding the maximum value of the F-S graph
For a spring stretched or compressed by a small distance from its unstretched configuration, the force exerted by the spring is given by F = -kx. What does 'k' represent in this equation?
For a spring stretched or compressed by a small distance from its unstretched configuration, the force exerted by the spring is given by F = -kx. What does 'k' represent in this equation?
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In the equation F = -kx, what does the negative sign indicate?
In the equation F = -kx, what does the negative sign indicate?
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