A discus thrower is spinning the discus along a circular path in preparation for the throw. At one instant, the discus thrower?s angular velocity is 5.5 rad/s and .5 s later, the angular velocity of the thrower than increased to 12.7 rad/s
If the discus is held at 112 cm away from the thrower?s axis of rotation during the entire movement, what is the tangential velocity of the discus at the second instant?