Imagine that the CD on the right side is rotating with a constant angular velocity of �=6 rad/s between t=0 and t=3 s. Then, at t=3 s, it is suddenly subjected to a constant angular acceleration of α=6 rad/s2 for 2 seconds. Determine the number of turns for the total time interval from t=0 to t=5 s. (Diameter of the CD is 12 cm)

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?