Question

A particle is revolving in a circle with increasing its speed uniformly. Which of the following is constant?

• A. Centripetal acceleration
• B. Tangential acceleration
• C. Angular acceleration
• D. None of these

Answer 1

Answer: (B), (C)

The correct options are
B Tangential acceleration
C Angular acceleration

Tangential acceleration $|a_t|=\frac{dv}{dt}=constant$ as speed is increasing uniformly but changes its direction.

$|a_c|=\frac{v^2}{r}$ changes as $v$ changes.

$\alpha =\frac{|a_t|}{r}=constant$