For a particle in a uniformly accelerated circular motion:

In a circular motion of a particle,the tangential acceleration of the particle is given by $a_t = 12 \ m/s^2$. The radius of the circle is $3 \ m$. The particle was initially at rest. The time after which the total acceleration of the particle makes an angle $45^{\circ}$ with the radial acceleration is

$A$ uniform circular disc of radius $50\, cm$ at rest is free to turn about an axis which is perpendicular to its plane and passes through its centre. It is subjected to a torque which produces a constant angular acceleration of $2.0\, rad \,s^{-2}$. Its net acceleration in $m\,s^{-2}$ at the end of $2.0\,s$ is approximately (in $.0$)

$A$ particle moves in a circular path with decreasing speed. Determine the correct statement.

$A$ particle moves on a circular path with decreasing speed. Identify the correct statement.

An electron is moving in a circle of radius $2 \, m$ with a speed of $4 \, m/s$. Find the acceleration of the electron in $m/s^2$.