Posted by John on Monday, November 19, 2007 at 6:37pm.
Since you are so adamant on an answer, I will attempt this. I'm not 100% sure, though.
a. angular velocity = angle traversed / time
a = 35 / .5 = 70 degrees per second
b. Multiply angular velocity by radius.
70 * ((9+6)/2)
70 * 7.5
525 ft/sec
Be warned... I'm not sure about those answers.
Actually, I believe they want a different answer for each child. I didn't account for that, so I have no idea.
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