here is the problem: An airplane propeller is 2.08 m in length (from tip to tip) and has a mass of 117 kg. When the airplane's engine is first started, it applies a constant torque of 1950 N*m to the propeller, which starts from rest. -What is the angular acceleration of the propeller? Treat the propeller as a slender rod. For this part i got 46.23 rad/s^2 finding first I=(1/12)ML^2 and then plugging that into acc angular = torque/I What is the propeller's angular speed after making 5.00 rev? -for this part i get confused, am i supposed to use 5 rev "per min". i used the formula v = w*r where w= 2*pi*frequency, but it is not right. can anyone direct me to the right formula?? thanks.