Question

The angular acceleration of particle moving along a circular path with uniform speed

• A. uniform but non zero
• B. zero
• C. variable
• D. such as can not be predicted from given information

Answer 1

The correct option is B zero

The velocity of the particle is constant i.e $v=constant$

Using $v=rw$ $⟹w=constant$

$\therefore$ Angular acceleration $\alpha =\frac{dw}{dt}=0$