A ceiling fan is rotating 245 times each minute. What is its frequency? What is its period of rotation? What is its angular velocity? When the fan is turned off, it slows down at 2.50 rad/s2 how long will it take the fan to stop?
A playground seesaw is exactly 3.00 m long. A little girl who weighs 425 N is sitting on one end. If a little boy weighing 575 N wants to sit on the other side, how far must he sit from the fulcrum to keep the seesaw perfectly balanced?