# Name two physical quqntities which remain constant durijg unifork circular motion

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During uniform circular motion, constant terms are:

1. Speed of particle

2. angular acceleration

1. Speed of particle

2. angular acceleration

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1. tangential linear speed of the particle. (v m/sec)

scalar quantity

2. angular velocity ω rad/sec

its direction will be clockwise or anticlockwise...but fixed.

it is a vector

3. angular acceleration = α = 0, is also constant

its direction is any .. as it is a zero vector.

4. radius of curvature of the path = R constant

it is a scalar

5. Torque on the body = 0 it is a vector. it is always same.

6. time period T = 2π/ω

7. Frequency of revolutions. = 1/T

8. Angular momentum. L = m r X v

It is perpendicular to the circular plane through the center of circle..

magnitude and direction are fixed.

scalar quantity

2. angular velocity ω rad/sec

its direction will be clockwise or anticlockwise...but fixed.

it is a vector

3. angular acceleration = α = 0, is also constant

its direction is any .. as it is a zero vector.

4. radius of curvature of the path = R constant

it is a scalar

5. Torque on the body = 0 it is a vector. it is always same.

6. time period T = 2π/ω

7. Frequency of revolutions. = 1/T

8. Angular momentum. L = m r X v

It is perpendicular to the circular plane through the center of circle..

magnitude and direction are fixed.