A 220 g basketball has a 28 cm diameter andmay be approximated

QUESTION

A 220 g basketball has a 28 cm diameter andmay be approximated as a thin spherical shell.220 gÂµ = 0.364.47 m21◦Starting from rest, how long will it takea basketball to roll without slipping 4.47 mdown an incline that makes an angle of 21◦with the horizontal? The moment of inertia ofa thin spherical shell of radius R and mass mis I =23m R2, the acceleration due to gravityis 9.8 m/s2, and the coefficient of friction is0.36 .

ANSWER:

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