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Questions and Answers
What are like parallel forces?
What are like parallel forces?
- Forces acting in the same direction (correct)
- Forces that are perpendicular to each other
- Forces acting at different angles
- Forces acting in different directions
Which of the following describes unlike parallel forces?
Which of the following describes unlike parallel forces?
- Forces that are always equal in magnitude
- Forces that are parallel and opposite to each other (correct)
- Forces that act along the same line and same direction
- Forces that cancel each other out completely
In the example of an apple suspended by a string, which forces are acting on it?
In the example of an apple suspended by a string, which forces are acting on it?
- Only the weight of the apple
- Only the tension in the string
- The weight of the apple and the tension in the string (correct)
- Forces of gravity and friction
What occurs when multiple forces push a bus in the same direction?
What occurs when multiple forces push a bus in the same direction?
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What characterizes unlike parallel forces as shown in figure 4.4(b)?
What characterizes unlike parallel forces as shown in figure 4.4(b)?
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Study Notes
Parallel Forces
- Parallel forces occur when multiple forces act on an object in the same direction.
- An example includes people pushing a bus, where all forces are directed the same way.
Like Parallel Forces
- Like parallel forces are defined as forces that are parallel and act in the same direction.
- Example: A bag filled with apples experiences parallel forces from the weight of each apple, which all act downwards due to gravity.
Unlike Parallel Forces
- Unlike parallel forces are characterized by parallel orientation but opposite directions.
- An instance is an apple suspended by a string: the weight acts downwards while the tension in the string acts upwards.
- These opposing forces are parallel but can lead to a state of equilibrium.
- Example: Forces F1 and F2 are unlike parallel forces if they act in parallel but in different lines, which can create rotational effects on an object.
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