Question

For a particle having a uniform circular

motion, which of the following is constant

(A) Speed (B) Acceleration

(C) Velocity (D) Displacement


what is the answer​

Answer 1

Speed.

Speed is a scalar quantity.All others are vector quantities.Scalar quanties don't have direction, only magnitude.vector quantities have both magnitude and direction. In uniform circular motion,the direction changes and vector quantities can't be constant.