If `a_(r)` and `a_(t)` represent radial and tangential accelerations, the motion of a particle will be uniformly circular if

Options

A. `a_(r)=0 and a_(t)=0`
B. `a_(r)=0 "but" a_(t)ne0`
C. `a_(r)ne0 "but" a_(t)=0`
D. `a_(r)ne 0 and a_(t)ne 0`

Answer

C

Explanation

In uniform circular motion , tangential acceleration is zero but magnitude of radial acceleration is constant.