Given the following five objects: a Hoop I = MR^2 solid sphere I = (2/5)MR^2 a b

Question

Given the following five objects:

a Hoop I = MR^2
solid sphere I = (2/5)MR^2
a block I = 0
hollow sphere I = (2/3)MR^2
solid cylinder I = (1/2)MR^2

All of the objects have the same mass M and outer radius R (except the block). They are all released simultaneously from an initial height h and roll down an incline of an angle. If we neglect friction for the block and assume rolling without slipping for the others, list the objects in the order that they reach the bottom of the incline. Justify answer.

Explanation / Answer

Less I => less time.In the order of the ones that reach first

block

solid sphere 

solid cylinder

hallow sphere

hoop

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