Multiple Choice
When a discus thrower begins his throwing motion, he spins with an angular velocity of 7 rad/s. Just before he releases the discus this increases to 21 rad/s. If the time from the beginning of the throw to just before release is 0.75 s, what was the thrower's average angular acceleration?
A) 10.5 rad/s2
B) 28 rad/s2
C) 14 rad/s2
D) 18.7 rad/s2
E) 37.3 rad/s2
Correct Answer:
Verified
Correct Answer:
Verified
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