The record distance for the hammer throw is about 87 m. To achieve this distance, an athlete must produce a centripetal acceleration of nearly 711 m/s^2.

A) Given a radius of 1.21 m, calculate the speed of the ball when it is released.

B) The athlete lets go when the ball is 2.0 m above the ground and moving at an angle of 42 degrees above the horizontal. Determine the range. Ignore any air friction.

I need help with 11 b). I found that the answer to A is 29.3 m/s (initial velocity). I am getting the wrong answer for 11 b (I am getting 83.4 when the answer is 89.4 m as the range).