Solved: A 4.0-m-diameter playground merry-go-round, with amoment of inertia of 400 kg
Chapter 9, Problem 26(choose chapter or problem)
A 4.0-m-diameter playground merry-go-round, with amoment of inertia of 400 kg m2, is freely rotat ing with anangular velocity of 2.0 radls. Ryan, whose mass is 80 kg, runson the ground around the outer edge of the merry-go-round inthe opposite direction to its rotation. Still moving, he jumpsdirectly onto the rim of the merry-go-round, bringing it (andhimself) to a halt. How fa st was Ryan running when he jumpedon?A. 2.0 misB. 4.0 misC. 5.0 misD. 7.5 misE. 10 mis
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