A particle is undergoing uniformly accelerated circular motion with angular retardation \(\pi \text{ rad/s}^2\). If the angular velocity of the particle at t = 0 is \(2 \pi \text{ rad/s}\), the velocity and acceleration vectors of the body at t = 0 s are best represented by : 

\(\vec{a_r}\) must be towards the centre of the circle. 

\(\vec{a_t}\) must be opposite to \(\vec{v}\)

The resultant acceleration \(\vec{a}\) must be at an angle with radius and inside the wheel, not outside.