In uniform circular motion of a particle

Question

In uniform circular motion of a particle (A) velocity is constant but acceleration is variable (B) velocity is variable but acceleration is constant (C) both speed and acceleration are constants (D) speed is constant but acceleration is variable

Tardigrade Admin · Accepted Answer

In uniform circular, speed of particle is constant. Therefore, tangential acceleration is zero but radial acceleration remains which is constant in magnitude but its direction changes as particle moves in circular path.

Q. In uniform circular motion of a particle

velocity is constant but acceleration is variable

velocity is variable but acceleration is constant

both speed and acceleration are constants

speed is constant but acceleration is variable

In uniform circular, speed of particle is constant. Therefore, tangential acceleration is zero but radial acceleration remains which is constant in magnitude but its direction changes as particle moves in circular path.