Bar OC rotates with a clockwise angular velocity ωOC = 4.3 rad/s and a counterclockwise angular acceleration αOC = 2.3 rad/s2. The bar OC is a slotted member which accommodates the pin A attached to the sector. Determine the angular velocity ω and the angular acceleration α of the sector. The angular velocity and the angular acceleration are positive if counterclockwise, negative if clockwise.

Acar traveling at a constant speed of 22.0 m/s passes a trooper hidden behind a billboard. one second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.50 m/s2. how long does it take the trooper to overtake the speeding car? solve this problem by a graphical method. on the same graph, plot position versus time for the car and the trooper.