Gently swing your arm in a vertical circle, pivoting at the shoulder and keeping the rest of the arm straight. Observe the motion of the arm . time it takes to complete 5 rotations 4.54 seconds . distance from the shoulder to the elbow 15 inches distance from the shoulder to the middle of the hand 23 inches Motion of the Hand How far in degrees did the hand travel during the five rotations? . How far in radians did the hand travel during the five rotations? How far in meters did the hand travel during the five rotations? . What was the average angular speed (deg/s and rad/s) of the hand? . What was the average linear speed (m/s) of the hand? . What was the average angular acceleration (deg/s2 and rad/s2) of the hand? How do you know? What was the average centripetal acceleration (m/s2) of the hand? Motion of the Elbow . How far in degrees did the hand travel during the five rotations? . How far in radians did the hand travel during the five rotations? . How far in meters did the hand travel during the five rotations? . What was the average angular speed (deg/s and rad/s) of the hand? . What was the average linear speed (m/s) of the hand? What was the average angular acceleration (deg/s2 and rad/s2) of the hand? How do you know? What was the average centripetal acceleration (m/s2) of the hand