Sherita Gallati: As stated, the question cannot be answered. What is missing is the coefficient of friction. Without that, that can be NO answer.
Barrett Zheng: since friction doesn't do dissipative work, it causes rollingwe can use conservation of energy to get v1/2mv^2 + 1/2Iw^2 = mghv = sqrt(6/5gh) = 6.53 m/sThere will be uniform accelerationso s = 1/2(v + u) t --> 1.6 = .5 * 6.53 * tt = 0.49sNote we didnt need the size of the ball...Show more
Janeen Perona: please use the conservation of angular momentum to do the problem as you will get a different answer if you use conservation of mechanical energy.(according to my teacher)
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