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Questions and Answers
Which factor is NOT considered when calculating the work done on a system by an agent exerting a constant force?
Which factor is NOT considered when calculating the work done on a system by an agent exerting a constant force?
- Angle between the force and the displacement vectors
- Magnitude of the displacement
- Mass of the system (correct)
- Magnitude of the force
When does a force do no work on an object?
When does a force do no work on an object?
- When the force is perpendicular to the displacement of its point of application (correct)
- When the force is applied to a rigid object
- When the force is the only force acting on the object
- When the force is applied in the same direction as the displacement
For a deformable system, what is true about the displacement associated with the forces applied?
For a deformable system, what is true about the displacement associated with the forces applied?
- It is always perpendicular to the force applied
- It is generally not the same as the displacement of the object (correct)
- It is directly proportional to the magnitude of the force applied
- It is always equal to the displacement of the object
When is work considered positive in relation to the direction of the force?
When is work considered positive in relation to the direction of the force?
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Which forces do no work on an object according to the given text?
Which forces do no work on an object according to the given text?
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