1.) A discus thrower begins a throwing motion by spinning at an angular velocity of 3.5rad/s.The discus thrower's angular velocity is 27.5 rad/s at the point of release. The time from the beginning of the throw to the point of release is 0.85 sec, and the length from center of body and hand (i.e. radius of rotation) is 0.75 m.

a.What is the average angular acceleration? Express you answer in degrees and radians.

b. What is the linear tangential velocity at the point of release?

c. What is the radial acceleration at the instant prior to the point of release?

2.) A hammer thrower spins with an angular velocity of 1200/s. The distance from the individual's axis of rotation to the hammerhead is 1.3 meters.

a.What is the linear tangential velocity of the hammerhead?

b.What is the radial acceleration of the hammerhead?

3.) A softball pitcher throws a pitch. She is facing West, and her arm starts out pointing due east with an initial velocity of 0. She is tossing an underhand slow pitch, and releases the ball 0.35 seconds into the throw when her arm is pointing 45 degrees west of north.

a.What was her angular displacement in degrees?

b.What was her angular displacement in radians?

c.What was her angular velocity (in degrees/second)?

d. What was her angular acceleration from the start of the motion to her current position (in degrees/s^2)?