The angular speed of an automobile engine is increased at a constant rate from 1200 rev/min to

Question:

The angular speed of an automobile engine is increased at a constant rate from 1200 rev/min to 3000 rev/min in 12 s.(a) An axis that passes through point P and is perpendicular to the plane of the figure and(b) An axis that passes through point P, is perpendicular to the rod of length 2L, and lies in the plane of thefigure.