Q. What role do constraints play in the analysis of mechanical systems? (2021)
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A.
They simplify the equations of motion
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B.
They increase the complexity of the system
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C.
They have no significant impact
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D.
They only affect energy calculations
Solution
Constraints simplify the equations of motion by limiting the degrees of freedom in a mechanical system.
Correct Answer: A — They simplify the equations of motion
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Q. Which of the following best describes a 'constraint' in physics? (2019)
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A.
A limitation on the motion of a system
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B.
A force acting on an object
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C.
A type of energy transfer
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D.
A method of calculating speed
Solution
A constraint is a limitation that restricts the motion or behavior of a system.
Correct Answer: A — A limitation on the motion of a system
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Q. Which of the following is NOT a type of constraint? (2020)
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A.
Geometric constraint
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B.
Kinematic constraint
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C.
Dynamic constraint
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D.
Thermal constraint
Solution
Thermal constraints are not typically classified as constraints in the context of motion and distribution.
Correct Answer: D — Thermal constraint
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Q. Which of the following scenarios exemplifies constraint-based distribution? (2023)
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A.
A car accelerating on a straight road
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B.
A pendulum swinging back and forth
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C.
A ball rolling down a hill
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D.
A rocket launching into space
Solution
A pendulum swinging back and forth is a classic example of constraint-based distribution due to its fixed pivot point.
Correct Answer: B — A pendulum swinging back and forth
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