Q-05 (10 points) Consider an object of mass m-1.2kg attached to a string and moves on horizontal circle in a circular path with radius of 0.85 m and angular acceleration of 0.16 rad/s2. a) If the object starts at rest find the time required to get angular velocity of 12.0 rad/s? (2 points) b) Find the components of liner accelerations of the object at the time of angular velocity of 12.0 rad/s? (4 points)