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 and `a_(t)ne 0.`
C. `a_(r)ne 0 and a_(t)=0`
D. `a_(r) ne 0 and a_(t) ne 0`

Answer

C

Explanation

In a uniform circular motion radial acceleration remains
constant and tangential acceleration remains zero.