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kokila

Asked: January 6, 2025In: Class-11-Physics

Express angular momentum in terms of the rectangular components of linear momentum and position vectors.

Linear momentum is the product of an object’s mass and its velocity, representing the quantity of motion it possesses. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

Rishabh39

Asked: January 6, 2025In: Class-11-Physics

Write an expression for torque in three-dimensional motion. Hence write the expressions for the rectangular components of torque.

Three-dimensional motion involves movement in three spatial dimensions, characterized by changes in position along the x, y, and z axes simultaneously. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

Rishabh39

Asked: January 6, 2025In: Class-11-Physics

Show that the magnitude of torque = magnitude of force x moment arm. Also show that only the angular component of the force is responsible for producing torque.

Magnitude refers to the size or amount of a quantity, regardless of its direction, often used to describe scalar and vector quantities. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

Rishabh39

Asked: January 6, 2025In: Class-11-Physics

Explain how torque can be expressed as a vector product of two vectors. How is the direction of torque determined?

Vectors are quantities that have both magnitude and direction, used to represent physical quantities like velocity, force, and displacement. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

Rishabh39

Asked: January 6, 2025In: Class-11-Physics

Obtain an expression for the work done by a torque. Hence write the expression for power.

Torque is the rotational force that causes an object to rotate around an axis, influenced by force and distance from pivot. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

shanti34

Asked: January 6, 2025In: Class-11-Physics

What is a couple? What effect does it have on a body? Show that the moment of couple is same irrespective of the point of rotation of a body.

Rotation is the circular motion of an object around a central axis or point, involving angular displacement and torque effects. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

shanti34

Asked: January 6, 2025In: Class-11-Physics

State and explain the principle of moments of rotational equilibrium.

Rotational equilibrium occurs when the net torque acting on a body is zero, resulting in no angular acceleration or rotation change. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

shanti34

Asked: January 5, 2025In: Class-11-Physics

Define the term torque or moment of force. Give its units and dimensions.

Torque is the rotational force that causes an object to rotate around an axis, determined by force and distance. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

shanti34

Asked: January 5, 2025In: Class-11-Physics

On what factors does the turning effect of a force depends? What is the turning effect of force called?

The turning effect, or torque, is the rotational force causing an object to rotate around a pivot or axis. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

annu10

Asked: January 4, 2025In: Class-11-Physics

How can we locate the centre of mass of rigid bodies of regular geometrical shape and having uniform mass distribution? Give examples.

Uniform mass distribution means mass is evenly spread throughout an object, resulting in consistent density and balance across its structure. Class 11 Physics Systems of Particle & Rotational Motion CBSE EXAM 2024-25

Express angular momentum in terms of the rectangular components of linear momentum and position vectors.

Write an expression for torque in three-dimensional motion. Hence write the expressions for the rectangular components of torque.

Show that the magnitude of torque = magnitude of force x moment arm. Also show that only the angular component of the force is responsible for producing torque.

Explain how torque can be expressed as a vector product of two vectors. How is the direction of torque determined?

Obtain an expression for the work done by a torque. Hence write the expression for power.

What is a couple? What effect does it have on a body? Show that the moment of couple is same irrespective of the point of rotation of a body.

State and explain the principle of moments of rotational equilibrium.

Define the term torque or moment of force. Give its units and dimensions.

On what factors does the turning effect of a force depends? What is the turning effect of force called?

How can we locate the centre of mass of rigid bodies of regular geometrical shape and having uniform mass distribution? Give examples.

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