We have learned that Torque is equal to a force that is perpendicular to a radius (displacement); however, I just cannot grasp one of the study questions we received:
A hammer thrower accelerates the hammer (mass = 7.30 kg) from rest within four full turns (revolutions) and releases it at a speed of 30.0 m/s. Assuming a uniform rate of increase in angular velocity and a radius of 1.50 m, calculate the following answers.
(a)the angular acceleration: 7.96 rad/s2
(b) the (linear) tangential acceleration: 11.94 m/s2
(c) the centripetal acceleration just before release: 600 m/s2
(d) the net force being exerted on the hammer by the athlete just before release: 4380 N
(e) the angle of this force with respect to the radius of the circular motion is___
So basically, I have answered the angular acceleration, tangential acceleration, centripetal acceleration and the net force, but I cannot determine the angle. Thanks!