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Questions and Answers
What is the equation for work when a constant force is aligned with the direction of motion?
What is the equation for work when a constant force is aligned with the direction of motion?
- $W = F \div d$
- $W = F + d$
- $W = F \cdot d$ (correct)
- $W = F - d$
When does a force do negative work?
When does a force do negative work?
- When it is applied vertically
- When it is applied horizontally
- When it has a component in the direction of the displacement
- When it has a component opposite to the direction of the displacement (correct)
When does a force do positive work?
When does a force do positive work?
- When it is applied horizontally
- When it has a component in the direction of the displacement (correct)
- When it is applied vertically
- When it has a component opposite to the displacement
In the example of dropping a ball, what type of work is done by the gravitational force?
In the example of dropping a ball, what type of work is done by the gravitational force?
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In the example of throwing a ball upwards, what type of work is done by the gravitational force?
In the example of throwing a ball upwards, what type of work is done by the gravitational force?
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