Which of the following statements is NOT true for a particle moving in circle with a constant angular speed?
A. The radial acceleration vector is tangent to the circle.
B. The linear velocity vector is tangent to the circle.
C. The radial acceleration vector points towards the centre of the circle.
D. The linear velocity and radial acceleration vectors at a point are perpendicular to each other.
Which of the following statements is NOT true for a particle moving in circle with a constant angular speed?
A. The radial acceleration vector is tangent to the circle.
B. The linear velocity vector is tangent to the circle.
C. The radial acceleration vector points towards the centre of the circle.
D. The linear velocity and radial acceleration vectors at a point are perpendicular to each other.

Correct answer is A.