1. State principles of conservation of linear momentum. 2. What is meant by impulse of force? Write its formula. 3. What is meant by couple? Write any two examples. 4. Define torqu... 1. State principles of conservation of linear momentum. 2. What is meant by impulse of force? Write its formula. 3. What is meant by couple? Write any two examples. 4. Define torque and center of mass.
Understand the Problem
The question poses multiple physics-related queries, asking for definitions and explanations regarding various concepts such as conservation of momentum, impulse, couple, torque, and center of mass.
Answer
1. Total momentum remains constant without external force. 2. Impulse = Force × Time. 3. Couple: opposing forces causing rotation (e.g., steering wheel). 4. Torque: force causing rotation; center of mass: average mass point.
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The principle of conservation of linear momentum states that if no external force acts on a system, the total momentum of the system remains constant.
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Impulse of force is the change in momentum resulting from a force applied over a period of time. Its formula is Impulse = Force × Time (J = FΔt).
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A couple consists of two equal forces acting in opposite directions, creating rotation without translation. Examples: a) Turning a steering wheel. b) Opening a bottle cap.
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Torque is the measure of the force causing an object to rotate around an axis. The center of mass is the point at which the mass of a body or system is concentrated.
Answer for screen readers
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The principle of conservation of linear momentum states that if no external force acts on a system, the total momentum of the system remains constant.
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Impulse of force is the change in momentum resulting from a force applied over a period of time. Its formula is Impulse = Force × Time (J = FΔt).
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A couple consists of two equal forces acting in opposite directions, creating rotation without translation. Examples: a) Turning a steering wheel. b) Opening a bottle cap.
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Torque is the measure of the force causing an object to rotate around an axis. The center of mass is the point at which the mass of a body or system is concentrated.
More Information
Conservation of momentum is crucial in collision analysis. Impulse influences the resultant velocity. Couples create rotational effects. Torque and center of mass concepts are key in mechanics.
Tips
Common mistakes include mixing units when calculating impulse or confusing torque with force.
Sources
- Law Of Conservation Of Linear Momentum - BYJU'S - byjus.com
- Linear Momentum, Force, and Impulse - Honors Physics - Fiveable - library.fiveable.me
- 9.2 Impulse and Collisions – University Physics Volume 1 - pressbooks.online.ucf.edu
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