Question

Define angular displacement, angular velocity

Answer 1

Heyaaa

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Angular displacement :- It is defined as the angle described by radius vector in a given time at the centre of circle.

Angular velocity :- Angular velocity of a particle performing circular motion is defined as the time rate of change of limiting angular displacement.

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Answer 2

DISPLACEMENT :- Displacement is the shortest distance between the initial and the final positions of a body in the direction of the point of the final position.

• Displacement between two points is measured by the straight path between the points .

• Displacement may be positive as well as negative and even zero.

• Displacement is a vector quantity.

ANGULAR DISPLACEMENT

• In a circular motion, the angular displacement of a body is the angle subtended by the body at the centre in a given interval of time. It is represented by the symbol ( theta).

• The unit for angular displacement is Radian a supplementary quantity. The Radian is defined as the angle subtended at the centre of a circle by an Arc equal in length to its radius .

VELOCITY :- Velocity is the rate of change of displacement .

• Velocity = displacement / time or it is the distance travelled in unit time in a given direction.

• SI unit of velocity is metre per second or m/s.

• It is a vector quantity

ANGULAR VELOCITY

• The angular displacement per unit time is called the angular velocity. It is represented by the symbol Omega.

• The unit from angular velocity Radian per second (rad/s).