A regulation basketball has a 15 cm diameter and may be appropriated as a thin spherical shell.
1 answer:
Solution :
From the given data,
For the spherical shell is 
where x is the radius of gyration and the acceleration of a rolling body on an inclined plane = a
Therefore,



= 0.6 x 9.81 x sin ( 29.7)




Δt = 1.411 s
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