An insect trapped in a circular groove of radius \(12\) cm moves along the groove steadily and completes \(7\) revolutions in \(100\) s. What is the angular speed of the motion? 
1.\(0.62\) rad/s
2.\(0.06\) rad/s
3. \(4.40\) rad/s
4. \(0.44\) rad/s

An insect trapped in a circular groove of radius \(12\) cm moves along the groove steadily and completes \(7\) revolutions in \(100\) s. Is the acceleration vector a constant vector? What is its magnitude?
1. \(\mathrm{yes},\) \(2.3~\mathrm{cm/s^2}\)
2. \(\mathrm{no},\) \(5.3~\mathrm{cm/s^2}\)
3. \(\mathrm{yes},\) \(5.3~\mathrm{cm/s^2}\)
4. \(\mathrm{no},\) \(2.3~\mathrm{cm/s^2}\)