Question

A solid sphere and hollow cylinder are rolled down an incline of angle

Answer 1

Step-by-step explanation:

Acceleration of the body rolling down the inclined plane  a=1+Kgsinθ

where θ is the angle of inclination.

We know,  Ksolidsphere=52, Ksolidcylinder=21, Khollowsphere=32 and Khollowcylinder=1 

⟹  asolidsphere>asolidcylinder>ahollowsphere>ahollowcylinder

Now let the distance covered by each body along the inclined plane be S.

Using  S=ut+21at2    

where u=0  (as each body starts from rest)

∴  S=0+21at2

⟹  t=a2S

Thus we get  the answer.

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