Comprehension A particle moves with deceleration along the circle of radius \( R \) so that at ...

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Comprehension
A particle moves with deceleration
along the circle of radius \( R \) so that at any moment of time its tangential and normal accelerations are equal in moduli. At the initial moment \( t=0 \) the speed of the particle equals \( v_{0} \).

The total acceleration of the particle as function of velocity and distance covered
(a) \( a=\sqrt{2} \frac{v^{2}}{R} \)
(b) \( a=\frac{v^{2}}{R} \)
(c) \( a=\frac{2 v^{2}}{R} \)
(d) \( a=\frac{2 \sqrt{2} v^{2}}{R} \)
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